diff --git a/atsf_agent/internal/agent/runner.go b/atsf_agent/internal/agent/runner.go
index f184b975..954ec6a7 100644
--- a/atsf_agent/internal/agent/runner.go
+++ b/atsf_agent/internal/agent/runner.go
@@ -35,6 +35,7 @@ type Runner struct {
 	Updater          Updater
 
 	autoUpdate bool
+	updateNow  bool
 	updateRepo string
 }
 
@@ -130,16 +131,19 @@ func (r *Runner) applySettings(settings *protocol.AgentSettings) bool {
 		}
 	}
 	r.autoUpdate = settings.AutoUpdate
-	r.updateRepo = settings.UpdateRepo
+	r.updateNow = settings.UpdateNow
+	r.updateRepo = strings.TrimSpace(settings.UpdateRepo)
 	return changed
 }
 
 func (r *Runner) tryAutoUpdate(ctx context.Context) {
-	if !r.autoUpdate || r.Updater == nil || r.updateRepo == "" {
+	shouldCheck := r.autoUpdate || r.updateNow
+	r.updateNow = false
+	if !shouldCheck || r.Updater == nil || r.updateRepo == "" {
 		return
 	}
 	if err := r.Updater.CheckAndUpdate(ctx, r.updateRepo); err != nil {
-		log.Printf("agent auto-update check failed: %v", err)
+		log.Printf("agent update check failed: %v", err)
 	}
 }
 
diff --git a/atsf_agent/internal/protocol/agent_api.go b/atsf_agent/internal/protocol/agent_api.go
index 22835c6e..8169872f 100644
--- a/atsf_agent/internal/protocol/agent_api.go
+++ b/atsf_agent/internal/protocol/agent_api.go
@@ -18,6 +18,7 @@ type AgentSettings struct {
 	SyncInterval      int    `json:"sync_interval"`
 	AutoUpdate        bool   `json:"auto_update"`
 	UpdateRepo        string `json:"update_repo"`
+	UpdateNow         bool   `json:"update_now"`
 }
 
 type NodePayload struct {
diff --git a/atsf_server/common/constants.go b/atsf_server/common/constants.go
index 794d4f68..e10e3c16 100644
--- a/atsf_server/common/constants.go
+++ b/atsf_server/common/constants.go
@@ -53,7 +53,6 @@ var NodeOfflineThreshold = 2 * time.Minute
 // V3 operational settings (hot-reloadable via Option table)
 var AgentHeartbeatInterval = 30000 // milliseconds
 var AgentSyncInterval = 30000      // milliseconds
-var AgentAutoUpdate = false
 var AgentUpdateRepo = "Rain-kl/ATSFlare"
 
 const (
diff --git a/atsf_server/controller/node.go b/atsf_server/controller/node.go
index 39943667..61540f8a 100644
--- a/atsf_server/controller/node.go
+++ b/atsf_server/controller/node.go
@@ -3,9 +3,10 @@ package controller
 import (
 	"atsflare/service"
 	"encoding/json"
-	"github.com/gin-gonic/gin"
 	"net/http"
 	"strconv"
+
+	"github.com/gin-gonic/gin"
 )
 
 func CreateNode(c *gin.Context) {
@@ -117,3 +118,27 @@ func DeleteNode(c *gin.Context) {
 		"message": "",
 	})
 }
+
+func RequestNodeAgentUpdate(c *gin.Context) {
+	id, err := strconv.ParseUint(c.Param("id"), 10, 64)
+	if err != nil || id == 0 {
+		c.JSON(http.StatusBadRequest, gin.H{
+			"success": false,
+			"message": "无效的参数",
+		})
+		return
+	}
+	node, err := service.RequestNodeAgentUpdate(uint(id))
+	if err != nil {
+		c.JSON(http.StatusOK, gin.H{
+			"success": false,
+			"message": err.Error(),
+		})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{
+		"success": true,
+		"message": "",
+		"data":    node,
+	})
+}
diff --git a/atsf_server/model/node.go b/atsf_server/model/node.go
index b63a7e2b..b3b7b752 100644
--- a/atsf_server/model/node.go
+++ b/atsf_server/model/node.go
@@ -3,19 +3,21 @@ package model
 import "time"
 
 type Node struct {
-	ID             uint      `json:"id" gorm:"primaryKey"`
-	NodeID         string    `json:"node_id" gorm:"uniqueIndex;size:64;not null"`
-	Name           string    `json:"name" gorm:"size:128;not null"`
-	IP             string    `json:"ip" gorm:"size:64;not null"`
-	AgentToken     string    `json:"-" gorm:"size:128;index"`
-	AgentVersion   string    `json:"agent_version" gorm:"size:64;not null"`
-	NginxVersion   string    `json:"nginx_version" gorm:"size:64"`
-	Status         string    `json:"status" gorm:"size:16;not null;default:'offline'"`
-	CurrentVersion string    `json:"current_version" gorm:"size:32"`
-	LastSeenAt     time.Time `json:"last_seen_at"`
-	LastError      string    `json:"last_error" gorm:"size:1024"`
-	CreatedAt      time.Time `json:"created_at"`
-	UpdatedAt      time.Time `json:"updated_at"`
+	ID                uint      `json:"id" gorm:"primaryKey"`
+	NodeID            string    `json:"node_id" gorm:"uniqueIndex;size:64;not null"`
+	Name              string    `json:"name" gorm:"size:128;not null"`
+	IP                string    `json:"ip" gorm:"size:64;not null"`
+	AgentToken        string    `json:"-" gorm:"size:128;index"`
+	AutoUpdateEnabled bool      `json:"auto_update_enabled" gorm:"not null;default:false"`
+	UpdateRequested   bool      `json:"update_requested" gorm:"not null;default:false"`
+	AgentVersion      string    `json:"agent_version" gorm:"size:64;not null"`
+	NginxVersion      string    `json:"nginx_version" gorm:"size:64"`
+	Status            string    `json:"status" gorm:"size:16;not null;default:'offline'"`
+	CurrentVersion    string    `json:"current_version" gorm:"size:32"`
+	LastSeenAt        time.Time `json:"last_seen_at"`
+	LastError         string    `json:"last_error" gorm:"size:1024"`
+	CreatedAt         time.Time `json:"created_at"`
+	UpdatedAt         time.Time `json:"updated_at"`
 }
 
 func ListNodes() (nodes []*Node, err error) {
diff --git a/atsf_server/model/option.go b/atsf_server/model/option.go
index 9478e8fe..f1d903fa 100644
--- a/atsf_server/model/option.go
+++ b/atsf_server/model/option.go
@@ -54,7 +54,6 @@ func InitOptionMap() {
 	common.OptionMap["AgentHeartbeatInterval"] = strconv.Itoa(common.AgentHeartbeatInterval)
 	common.OptionMap["AgentSyncInterval"] = strconv.Itoa(common.AgentSyncInterval)
 	common.OptionMap["NodeOfflineThreshold"] = strconv.Itoa(int(common.NodeOfflineThreshold.Milliseconds()))
-	common.OptionMap["AgentAutoUpdate"] = strconv.FormatBool(common.AgentAutoUpdate)
 	common.OptionMap["AgentUpdateRepo"] = common.AgentUpdateRepo
 	common.OptionMapRWMutex.Unlock()
 	options, _ := AllOption()
@@ -162,8 +161,6 @@ func updateOptionMap(key string, value string) {
 		if v, err := strconv.Atoi(value); err == nil && v > 0 {
 			common.NodeOfflineThreshold = time.Duration(v) * time.Millisecond
 		}
-	case "AgentAutoUpdate":
-		common.AgentAutoUpdate = value == "true"
 	case "AgentUpdateRepo":
 		if value != "" {
 			common.AgentUpdateRepo = value
diff --git a/atsf_server/router/api-router.go b/atsf_server/router/api-router.go
index 9022426f..4a8d4f11 100644
--- a/atsf_server/router/api-router.go
+++ b/atsf_server/router/api-router.go
@@ -3,6 +3,7 @@ package router
 import (
 	"atsflare/controller"
 	"atsflare/middleware"
+
 	"github.com/gin-gonic/gin"
 )
 
@@ -104,6 +105,7 @@ func SetApiRouter(router *gin.Engine) {
 			nodeRoute.POST("/bootstrap-token/rotate", controller.RotateNodeBootstrapToken)
 			nodeRoute.GET("/", controller.GetNodes)
 			nodeRoute.POST("/", controller.CreateNode)
+			nodeRoute.POST("/:id/agent-update", controller.RequestNodeAgentUpdate)
 			nodeRoute.PUT("/:id", controller.UpdateNode)
 			nodeRoute.DELETE("/:id", controller.DeleteNode)
 		}
diff --git a/atsf_server/service/agent.go b/atsf_server/service/agent.go
index 4d2f44f1..f2e12fe2 100644
--- a/atsf_server/service/agent.go
+++ b/atsf_server/service/agent.go
@@ -49,6 +49,7 @@ type AgentSettings struct {
 	SyncInterval      int    `json:"sync_interval"`
 	AutoUpdate        bool   `json:"auto_update"`
 	UpdateRepo        string `json:"update_repo"`
+	UpdateNow         bool   `json:"update_now"`
 }
 
 type HeartbeatResponse struct {
@@ -63,6 +64,8 @@ type NodeView struct {
 	IP                 string     `json:"ip"`
 	AgentToken         string     `json:"agent_token"`
 	Pending            bool       `json:"pending"`
+	AutoUpdateEnabled  bool       `json:"auto_update_enabled"`
+	UpdateRequested    bool       `json:"update_requested"`
 	AgentVersion       string     `json:"agent_version"`
 	NginxVersion       string     `json:"nginx_version"`
 	Status             string     `json:"status"`
@@ -87,8 +90,10 @@ func HeartbeatNode(node *model.Node, payload AgentNodePayload) (*HeartbeatRespon
 	if err := validateAgentNodePayload(payload); err != nil {
 		return nil, err
 	}
+	updateNow := node.UpdateRequested
 	applyNodeRuntime(node, payload, true)
-	if err := model.DB.Model(node).Select("ip", "agent_version", "nginx_version", "status", "current_version", "last_seen_at", "last_error").Updates(node).Error; err != nil {
+	node.UpdateRequested = false
+	if err := model.DB.Model(node).Select("ip", "agent_version", "nginx_version", "status", "current_version", "last_seen_at", "last_error", "update_requested").Updates(node).Error; err != nil {
 		return nil, err
 	}
 	return &HeartbeatResponse{
@@ -96,8 +101,9 @@ func HeartbeatNode(node *model.Node, payload AgentNodePayload) (*HeartbeatRespon
 		AgentSettings: &AgentSettings{
 			HeartbeatInterval: common.AgentHeartbeatInterval,
 			SyncInterval:      common.AgentSyncInterval,
-			AutoUpdate:        common.AgentAutoUpdate,
+			AutoUpdate:        node.AutoUpdateEnabled,
 			UpdateRepo:        common.AgentUpdateRepo,
+			UpdateNow:         updateNow,
 		},
 	}, nil
 }
diff --git a/atsf_server/service/node.go b/atsf_server/service/node.go
index b6e8fc2e..77b59fac 100644
--- a/atsf_server/service/node.go
+++ b/atsf_server/service/node.go
@@ -11,7 +11,8 @@ import (
 )
 
 type NodeInput struct {
-	Name string `json:"name"`
+	Name              string `json:"name"`
+	AutoUpdateEnabled bool   `json:"auto_update_enabled"`
 }
 
 type NodeBootstrapView struct {
@@ -30,11 +31,12 @@ func CreateNode(input NodeInput) (*NodeView, error) {
 		return nil, errors.New("节点名不能为空")
 	}
 	node := &model.Node{
-		Name:         name,
-		IP:           "",
-		AgentVersion: "",
-		NginxVersion: "",
-		Status:       NodeStatusPending,
+		Name:              name,
+		IP:                "",
+		AgentVersion:      "",
+		NginxVersion:      "",
+		Status:            NodeStatusPending,
+		AutoUpdateEnabled: input.AutoUpdateEnabled,
 	}
 	var err error
 	node.NodeID, err = newServerNodeID()
@@ -65,6 +67,7 @@ func UpdateNode(id uint, input NodeInput) (*NodeView, error) {
 		return nil, err
 	}
 	node.Name = name
+	node.AutoUpdateEnabled = input.AutoUpdateEnabled
 	if err = node.Update(); err != nil {
 		return nil, err
 	}
@@ -81,6 +84,19 @@ func DeleteNode(id uint) error {
 	return node.Delete()
 }
 
+func RequestNodeAgentUpdate(id uint) (*NodeView, error) {
+	node, err := model.GetNodeByID(id)
+	if err != nil {
+		return nil, err
+	}
+	node.UpdateRequested = true
+	if err = model.DB.Model(node).Update("update_requested", true).Error; err != nil {
+		return nil, err
+	}
+	common.SysLog("agent manual update requested: node_id=" + node.NodeID + " name=" + node.Name)
+	return buildNodeView(node), nil
+}
+
 func AuthenticateAgentToken(token string) (*model.Node, error) {
 	token = strings.TrimSpace(token)
 	if token == "" {
@@ -149,20 +165,22 @@ func RotateGlobalDiscoveryToken() (*NodeBootstrapView, error) {
 func buildNodeView(node *model.Node) *NodeView {
 	status := computeNodeStatus(node)
 	view := &NodeView{
-		ID:             node.ID,
-		NodeID:         node.NodeID,
-		Name:           node.Name,
-		IP:             node.IP,
-		AgentToken:     node.AgentToken,
-		AgentVersion:   node.AgentVersion,
-		NginxVersion:   node.NginxVersion,
-		Status:         status,
-		CurrentVersion: node.CurrentVersion,
-		LastSeenAt:     node.LastSeenAt,
-		LastError:      node.LastError,
-		CreatedAt:      node.CreatedAt,
-		UpdatedAt:      node.UpdatedAt,
-		Pending:        status == NodeStatusPending,
+		ID:                node.ID,
+		NodeID:            node.NodeID,
+		Name:              node.Name,
+		IP:                node.IP,
+		AgentToken:        node.AgentToken,
+		AgentVersion:      node.AgentVersion,
+		NginxVersion:      node.NginxVersion,
+		Status:            status,
+		CurrentVersion:    node.CurrentVersion,
+		LastSeenAt:        node.LastSeenAt,
+		LastError:         node.LastError,
+		CreatedAt:         node.CreatedAt,
+		UpdatedAt:         node.UpdatedAt,
+		Pending:           status == NodeStatusPending,
+		AutoUpdateEnabled: node.AutoUpdateEnabled,
+		UpdateRequested:   node.UpdateRequested,
 	}
 	return view
 }
diff --git a/atsf_server/web/src/App.js b/atsf_server/web/src/App.js
index c9836599..88ba6272 100644
--- a/atsf_server/web/src/App.js
+++ b/atsf_server/web/src/App.js
@@ -9,7 +9,14 @@ import NotFound from './pages/NotFound';
 import Setting from './pages/Setting';
 import EditUser from './pages/User/EditUser';
 import AddUser from './pages/User/AddUser';
-import { API, showError, showNotice } from './helpers';
+import {
+  API,
+  getBuildVersion,
+  hasBuildVersion,
+  normalizeVersion,
+  showError,
+  showNotice,
+} from './helpers';
 import PasswordResetForm from './components/PasswordResetForm';
 import GitHubOAuth from './components/GitHubOAuth';
 import PasswordResetConfirm from './components/PasswordResetConfirm';
@@ -44,16 +51,19 @@ function App() {
       console.log(`GitHub 仓库地址：https://github.com/Rain-kl/ATSFlare`);
       localStorage.setItem('status', JSON.stringify(data));
       statusDispatch({ type: 'set', payload: data });
-      localStorage.setItem('system_name', data.system_name);
-      localStorage.setItem('footer_html', data.footer_html);
-      localStorage.setItem('home_page_link', data.home_page_link);
-      if (
-        data.version !== process.env.REACT_APP_VERSION &&
-        data.version !== 'v0.0.0' &&
-        process.env.REACT_APP_VERSION !== ''
-      ) {
-        showNotice(
-          `新版本可用：${data.version}，请使用快捷键 Shift + F5 刷新页面`
+      localStorage.setItem('system_name', data.system_name);
+      localStorage.setItem('footer_html', data.footer_html);
+      localStorage.setItem('home_page_link', data.home_page_link);
+      const currentBuildVersion = getBuildVersion();
+      const latestServerVersion = normalizeVersion(data.version);
+      if (
+        hasBuildVersion() &&
+        latestServerVersion !== '' &&
+        latestServerVersion !== '0.0.0' &&
+        latestServerVersion !== currentBuildVersion
+      ) {
+        showNotice(
+          `新版本可用：${data.version}，请使用快捷键 Shift + F5 刷新页面`
         );
       }
     } else {
diff --git a/atsf_server/web/src/components/OperationSetting.js b/atsf_server/web/src/components/OperationSetting.js
index 2cfc1d27..f6c0ef43 100644
--- a/atsf_server/web/src/components/OperationSetting.js
+++ b/atsf_server/web/src/components/OperationSetting.js
@@ -17,7 +17,6 @@ const OperationSetting = () => {
     AgentHeartbeatInterval: '30000',
     AgentSyncInterval: '30000',
     NodeOfflineThreshold: '120000',
-    AgentAutoUpdate: 'false',
     AgentUpdateRepo: 'Rain-kl/ATSFlare',
     ServerAddress: '',
     AgentDiscoveryToken: '',
@@ -77,10 +76,6 @@ const OperationSetting = () => {
     setInputs((prev) => ({ ...prev, [name]: value }));
   };
 
-  const handleCheckboxChange = (e, { name, checked }) => {
-    setInputs((prev) => ({ ...prev, [name]: checked ? 'true' : 'false' }));
-  };
-
   const submitAgentIntervals = async () => {
     const hb = parseInt(inputs.AgentHeartbeatInterval, 10);
     const sync = parseInt(inputs.AgentSyncInterval, 10);
@@ -102,8 +97,7 @@ const OperationSetting = () => {
     await updateOption('NodeOfflineThreshold', String(offline));
   };
 
-  const submitAutoUpdate = async () => {
-    await updateOption('AgentAutoUpdate', inputs.AgentAutoUpdate);
+  const submitUpdateRepo = async () => {
     await updateOption('AgentUpdateRepo', inputs.AgentUpdateRepo);
   };
 
@@ -178,15 +172,13 @@ const OperationSetting = () => {
           </Form.Button>
 
           <Divider />
-          <Header as='h3'>Agent 自动更新</Header>
-          <Form.Group>
-            <Form.Checkbox
-              label='启用 Agent 自动更新'
-              checked={inputs.AgentAutoUpdate === 'true'}
-              name='AgentAutoUpdate'
-              onChange={handleCheckboxChange}
-            />
-          </Form.Group>
+          <Header as='h3'>Agent 更新源</Header>
+          <Message info size='small'>
+            <p>
+              自动更新开关和手动更新由节点页单独控制，这里只配置 Agent
+              更新仓库。
+            </p>
+          </Message>
           <Form.Group widths='equal'>
             <Form.Input
               label='更新仓库'
@@ -196,7 +188,7 @@ const OperationSetting = () => {
               onChange={handleInputChange}
             />
           </Form.Group>
-          <Form.Button onClick={submitAutoUpdate} primary>
+          <Form.Button onClick={submitUpdateRepo} primary>
             保存更新设置
           </Form.Button>
 
diff --git a/atsf_server/web/src/components/OtherSetting.js b/atsf_server/web/src/components/OtherSetting.js
index d2c2b020..7babb4e4 100644
--- a/atsf_server/web/src/components/OtherSetting.js
+++ b/atsf_server/web/src/components/OtherSetting.js
@@ -1,6 +1,13 @@
 import React, { useEffect, useState } from 'react';
 import { Button, Divider, Form, Grid, Header, Modal } from 'semantic-ui-react';
-import { API, showError, showSuccess } from '../helpers';
+import {
+  API,
+  getBuildVersion,
+  hasBuildVersion,
+  normalizeVersion,
+  showError,
+  showSuccess,
+} from '../helpers';
 import { marked } from 'marked';
 
 const OtherSetting = () => {
@@ -81,15 +88,18 @@ const OtherSetting = () => {
     window.location = 'https://github.com/Rain-kl/ATSFlare/releases/latest';
   };
 
-  const checkUpdate = async () => {
-    const res = await API.get(
-      'https://api.github.com/repos/Rain-kl/ATSFlare/releases/latest'
-    );
-    const { tag_name, body } = res.data;
-    if (tag_name === process.env.REACT_APP_VERSION) {
-      showSuccess(`已是最新版本：${tag_name}`);
-    } else {
-      setUpdateData({
+  const checkUpdate = async () => {
+    const res = await API.get(
+      'https://api.github.com/repos/Rain-kl/ATSFlare/releases/latest'
+    );
+    const { tag_name, body } = res.data;
+    if (
+      hasBuildVersion() &&
+      normalizeVersion(tag_name) === getBuildVersion()
+    ) {
+      showSuccess(`已是最新版本：${tag_name}`);
+    } else {
+      setUpdateData({
         tag_name: tag_name,
         content: marked.parse(body),
       });
diff --git a/atsf_server/web/src/helpers/utils.js b/atsf_server/web/src/helpers/utils.js
index 8cd4e347..11ba15a2 100644
--- a/atsf_server/web/src/helpers/utils.js
+++ b/atsf_server/web/src/helpers/utils.js
@@ -25,6 +25,19 @@ export function getFooterHTML() {
   return localStorage.getItem('footer_html');
 }
 
+export function normalizeVersion(value) {
+  if (!value) return '';
+  return String(value).trim().replace(/^v/i, '');
+}
+
+export function getBuildVersion() {
+  return normalizeVersion(process.env.REACT_APP_VERSION);
+}
+
+export function hasBuildVersion() {
+  return getBuildVersion() !== '';
+}
+
 export async function copy(text, label) {
   let okay = true;
   try {
diff --git a/atsf_server/web/src/pages/Node/index.js b/atsf_server/web/src/pages/Node/index.js
index fa16d4df..c2b3be2d 100644
--- a/atsf_server/web/src/pages/Node/index.js
+++ b/atsf_server/web/src/pages/Node/index.js
@@ -4,6 +4,7 @@ import { API, showError, showSuccess, timeAgo } from '../../helpers';
 
 const initialForm = {
   name: '',
+  auto_update_enabled: false,
 };
 
 const renderStatus = (status) => {
@@ -26,6 +27,16 @@ const renderApply = (result) => {
   return <Label>暂无</Label>;
 };
 
+const renderUpdateMode = (node) => {
+  if (node.update_requested) {
+    return <Label color='orange'>等待更新</Label>;
+  }
+  if (node.auto_update_enabled) {
+    return <Label color='green'>自动更新</Label>;
+  }
+  return <Label>手动更新</Label>;
+};
+
 const Node = () => {
   const [nodes, setNodes] = useState([]);
   const [bootstrap, setBootstrap] = useState({ discovery_token: '' });
@@ -91,6 +102,7 @@ const Node = () => {
     setSubmitting(true);
     const payload = {
       name: form.name.trim(),
+      auto_update_enabled: form.auto_update_enabled,
     };
     const res = editingId
       ? await API.put(`/api/nodes/${editingId}`, payload)
@@ -110,9 +122,21 @@ const Node = () => {
     setEditingId(node.id);
     setForm({
       name: node.name || '',
+      auto_update_enabled: !!node.auto_update_enabled,
     });
   };
 
+  const requestAgentUpdate = async (node) => {
+    const res = await API.post(`/api/nodes/${node.id}/agent-update`);
+    const { success, message } = res.data;
+    if (success) {
+      showSuccess(`已向节点 ${node.name} 下发更新指令`);
+      await loadNodes(false);
+    } else {
+      showError(message);
+    }
+  };
+
   const deleteNode = async (node) => {
     if (
       !window.confirm(
@@ -163,6 +187,14 @@ const Node = () => {
             value={form.name}
             onChange={(e, { value }) => setForm({ ...form, name: value })}
           />
+          <Form.Checkbox
+            label='启用该节点自动更新'
+            checked={form.auto_update_enabled}
+            onChange={(e, { checked }) =>
+              setForm({ ...form, auto_update_enabled: !!checked })
+            }
+            style={{ alignSelf: 'flex-end', marginBottom: '0.5rem' }}
+          />
         </Form.Group>
         <Button primary type='submit' loading={submitting}>
           {editingId ? '保存修改' : '新增节点'}
@@ -182,6 +214,7 @@ const Node = () => {
             <Table.HeaderCell>Auth Token</Table.HeaderCell>
             <Table.HeaderCell>IP</Table.HeaderCell>
             <Table.HeaderCell>状态</Table.HeaderCell>
+            <Table.HeaderCell>Agent 更新</Table.HeaderCell>
             <Table.HeaderCell>Agent / Nginx</Table.HeaderCell>
             <Table.HeaderCell>当前版本</Table.HeaderCell>
             <Table.HeaderCell>最近应用</Table.HeaderCell>
@@ -216,6 +249,7 @@ const Node = () => {
               </Table.Cell>
               <Table.Cell>{node.ip}</Table.Cell>
               <Table.Cell>{renderStatus(node.status)}</Table.Cell>
+              <Table.Cell>{renderUpdateMode(node)}</Table.Cell>
               <Table.Cell>
                 {node.agent_version} / {node.nginx_version || 'unknown'}
               </Table.Cell>
@@ -231,6 +265,14 @@ const Node = () => {
               </Table.Cell>
               <Table.Cell>{node.last_error || '无'}</Table.Cell>
               <Table.Cell>
+                <Button
+                  size='small'
+                  primary
+                  disabled={node.update_requested}
+                  onClick={() => requestAgentUpdate(node)}
+                >
+                  立即更新
+                </Button>
                 <Button size='small' onClick={() => beginEdit(node)}>
                   编辑
                 </Button>
diff --git a/docs/deployment.md b/docs/deployment.md
index 83a67351..19159234 100644
--- a/docs/deployment.md
+++ b/docs/deployment.md
@@ -229,7 +229,14 @@ curl -fsSL https://raw.githubusercontent.com/Rain-kl/ATSFlare/main/scripts/insta
 
 ### 7.3 Agent 自动更新
 
-在管理端 **运维设置** 中启用「Agent 自动更新」后，Agent 会在每次心跳周期检查 GitHub Releases，发现新版本时自动下载并重启。
+Agent 自动更新默认为关闭。
+
+在管理端 **节点管理** 页面中可以：
+
+* 为单个节点开启「自动更新」
+* 为单个节点点击「立即更新」，下发一次性更新指令
+
+节点在收到对应心跳响应后，会检查 GitHub Releases，发现新版本时自动下载并重启。
 
 ---
 
@@ -252,9 +259,15 @@ GitHub Release 中的 Agent 二进制命名格式：
 | AgentHeartbeatInterval | 心跳间隔（毫秒）     | heartbeat_interval |
 | AgentSyncInterval      | 同步间隔（毫秒）     | sync_interval      |
 | NodeOfflineThreshold   | 节点离线阈值（毫秒） | -                  |
-| AgentAutoUpdate        | 是否启用自动更新     | auto_update        |
 | AgentUpdateRepo        | 自动更新仓库         | update_repo        |
 
+节点管理页下发的字段：
+
+| 参数                   | 说明               | Agent 字段  |
+| ---------------------- | ------------------ | ----------- |
+| Node.AutoUpdateEnabled | 节点是否自动更新   | auto_update |
+| Node.UpdateRequested   | 节点一次性更新请求 | update_now  |
+
 ---
 
 ## 10. 当前已知限制
diff --git a/docs/design.md b/docs/design.md
index f3516d88..deeaf688 100644
--- a/docs/design.md
+++ b/docs/design.md
@@ -347,7 +347,6 @@ Agent 接口当前覆盖：
   * `AgentHeartbeatInterval`：Agent 心跳上报间隔（毫秒），默认 30000
   * `AgentSyncInterval`：Agent 配置同步间隔（毫秒），默认 30000
   * `NodeOfflineThreshold`：节点离线判定阈值（毫秒），默认 120000
-  * `AgentAutoUpdate`：是否允许 Agent 自动更新（`true`/`false`），默认 `false`
   * `AgentUpdateRepo`：Agent 自动更新 GitHub 仓库地址，默认 `Rain-kl/ATSFlare`
 * 环境变量类设置（`SESSION_SECRET`、`SQLITE_PATH`、`PORT`）不迁移，保留原有方式
 * 前端在设置页面新增「运维设置」Tab
@@ -364,8 +363,9 @@ Agent 接口当前覆盖：
 * 心跳响应新增 `agent_settings` 字段，包含 Server 端可控的运行时参数：
   * `heartbeat_interval`（毫秒）
   * `sync_interval`（毫秒）
-  * `auto_update`（布尔值）
+  * `auto_update`（节点级布尔值）
   * `update_repo`（GitHub 仓库名）
+  * `update_now`（一次性手动更新指令）
 * Agent 收到心跳响应后，动态调整本地定时器间隔
 * 当 Server 未返回 `agent_settings` 或字段为空时，Agent 保持本地值不变
 * Agent 不持久化 Server 下发的间隔值，重启后以本地 `agent.json` 为准，再由下次心跳覆盖
@@ -378,7 +378,7 @@ Agent 接口当前覆盖：
 
 第三版变更：
 
-* Agent 在收到 `auto_update=true` 时：
+ * Agent 在收到 `auto_update=true` 或 `update_now=true` 时：
   * 通过 GitHub Releases API 查询 `update_repo` 的最新 Release
   * 比较本地 `agent_version` 与远端 tag
   * 若存在更新，下载对应平台的二进制文件
@@ -387,6 +387,8 @@ Agent 接口当前覆盖：
 * 更新过程中不中断当前同步任务
 * 更新失败不影响正常心跳与同步
 * Agent 二进制文件命名约定：`atsflare-agent-{os}-{arch}`
+ * `auto_update` 默认关闭，由节点管理页逐节点开启
+ * `update_now` 由节点管理页手动触发，一次心跳消费一次
 
 ### 11.5 Agent 一键部署
 
@@ -443,13 +445,14 @@ Agent 接口当前覆盖：
   * Agent 心跳间隔
   * Agent 同步间隔
   * 节点离线阈值
-  * Agent 自动更新开关
   * Agent 更新仓库
   * 全局 Discovery Token 展示与重新生成
   * Agent 一键部署命令展示（根据当前 ServerAddress 和 DiscoveryToken 动态生成 curl 命令）
 * 节点列表页优化：
   * 时间显示改为友好的相对时间格式
   * 节点状态使用颜色标识
+  * 支持逐节点开启自动更新
+  * 支持逐节点手动触发一次 Agent 更新
 
 ---
 
diff --git a/docs/development-guidelines.md b/docs/development-guidelines.md
index d619f4b1..672d56df 100644
--- a/docs/development-guidelines.md
+++ b/docs/development-guidelines.md
@@ -205,7 +205,7 @@ Agent 必须满足：
 V3 新增行为：
 
 * 心跳响应包含 `agent_settings` 时，动态调整定时器间隔
-* `auto_update=true` 时在每次心跳后检查 GitHub Releases 更新
+* `auto_update=true` 或 `update_now=true` 时在每次心跳后检查 GitHub Releases 更新
 * 自我更新失败不影响心跳与同步
 * Server 下发的间隔值不持久化到 `agent.json`，重启后以本地为准
 * Agent 新增 `internal/updater` 模块处理自我更新逻辑
diff --git a/docs/development-plan.md b/docs/development-plan.md
index 32749795..643f9023 100644
--- a/docs/development-plan.md
+++ b/docs/development-plan.md
@@ -53,7 +53,6 @@
    * `AgentHeartbeatInterval`（默认 30000ms）
    * `AgentSyncInterval`（默认 30000ms）
    * `NodeOfflineThreshold`（默认 120000ms）
-   * `AgentAutoUpdate`（默认 false）
    * `AgentUpdateRepo`（默认 `Rain-kl/ATSFlare`）
 2. 在 `model/option.go` 的 `InitOptionMap()` 注册新选项
 3. 在 `model/option.go` 的 `updateOptionMap()` 增加对新选项的同步
@@ -101,13 +100,14 @@
    * 下载对应平台二进制
    * 替换自身并重启（exec syscall）
 2. 在 `runner.go` 心跳循环中集成更新检查
-3. 更新触发条件：`auto_update=true` 且存在新版本
+3. 更新触发条件：节点 `auto_update=true` 或收到一次性 `update_now=true` 且存在新版本
 
 验收标准：
 
 * Agent 能正确检测新版本
 * 能下载并替换自身二进制
 * 更新后自动重启并恢复心跳
+ * 默认不自动更新，需由控制面板逐节点开启或手动触发
 * 更新失败不影响正常运行
 
 ### 3.4 阶段四：GitHub Actions 完善与 Agent 一键部署