diff --git a/docs/changelog/index.md b/docs/changelog/index.md
index 6f7bdbb3..b4e30878 100644
--- a/docs/changelog/index.md
+++ b/docs/changelog/index.md
@@ -28,6 +28,7 @@ sidebar: false
 
 ### 修复
 
+- 「切换日志数据库」迁移任务修复冻结期目标库用户访问日志写入被误拦：`BuildForMigration` 未将跳过冻结标记传播到用户访问日志存储，导致迁移任务在清空目标库阶段以「log database is migrating」失败；现在目标库的清空与复制全程放行，任务可正常完成切换。
 - 「切换日志数据库」迁移任务补齐第 6 张表（用户访问日志）的复制与清空；目标为 PostgreSQL 时按源库时间范围预建分区，历史日志可正常迁移；冻结前先排空批写入队列，避免在途日志丢失。
 - 节点监控最新指标读取仅在 ClickHouse 为当前日志库时走 ClickHouse 快速路径，日志库切换后仪表盘不再读到旧库数据。
 - `log_database` / `log_db_migration` 为受保护配置，管理端创建/修改接口均拒绝手动写入。
diff --git a/frontend/lib/theme/themes.json b/frontend/lib/theme/themes.json
index 40c4d4ba..9818de0f 100644
--- a/frontend/lib/theme/themes.json
+++ b/frontend/lib/theme/themes.json
@@ -4559,4 +4559,4 @@
       }
     }
   }
-]
+]
\ No newline at end of file
diff --git a/internal/apps/openflare/tasks/log_db_switch_test.go b/internal/apps/openflare/tasks/log_db_switch_test.go
index cef8b157..727895fb 100644
--- a/internal/apps/openflare/tasks/log_db_switch_test.go
+++ b/internal/apps/openflare/tasks/log_db_switch_test.go
@@ -172,6 +172,45 @@ func TestClearTargetLogTablesClearsUserAccessLogs(t *testing.T) {
 	assert.Zero(t, count, "用户访问日志应被清空")
 }
 
+// TestClearTargetLogTablesDuringMigration 回归：冻结标记置位后，BuildForMigration 构造的
+// 目标 store 必须放行用户访问日志清空/写入。skipFreeze 未传播到 UserAccessLogs store 时
+// DeleteAll 会误报 ErrMigrating，导致真实切换任务在清空目标库阶段失败。
+func TestClearTargetLogTablesDuringMigration(t *testing.T) {
+	logstore.ResetForTest()
+	defer logstore.ResetForTest()
+
+	gdb := newLogDBSwitchDB(t)
+	db.SetDB(gdb)
+	t.Cleanup(func() { db.SetDB(nil) })
+	ctx := context.Background()
+
+	logstore.SetConfigReader(func(ctx context.Context, key string) (string, error) {
+		cfg, err := repository.GetSystemConfigByKey(ctx, key)
+		if err != nil {
+			return "", err
+		}
+		return cfg.Value, nil
+	})
+
+	// 预置目标库已有日志（迁移「覆盖目标库已有日志」幂等前提）。
+	now := time.Now().UTC()
+	require.NoError(t, gdb.Create(&analyticsmodel.UserAccessLog{ID: 1, UserID: 1, Path: "/a", CreatedAt: now}).Error)
+
+	// 冻结标记置位（与真实任务 Execute 流程一致）。
+	require.NoError(t, setMigrationFlag(ctx, "migrating"))
+	t.Cleanup(func() { _ = setMigrationFlag(ctx, "") })
+	require.True(t, logstore.Migrating(ctx))
+
+	dst, err := logstore.BuildForMigration(ctx, "sqlite")
+	require.NoError(t, err)
+
+	require.NoError(t, clearTargetLogTables(ctx, dst), "迁移冻结期间目标库清空必须放行")
+
+	var count int64
+	require.NoError(t, gdb.Model(&analyticsmodel.UserAccessLog{}).Count(&count).Error)
+	assert.Zero(t, count, "用户访问日志应被清空")
+}
+
 // TestValidateSwitch 各非法组合报错。
 func TestValidateSwitch(t *testing.T) {
 	oldDB, oldCH := config.Config.Database.Enabled, config.Config.ClickHouse.Enabled
diff --git a/internal/repository/logstore/provider.go b/internal/repository/logstore/provider.go
index 14df5cb7..d21f7fb4 100644
--- a/internal/repository/logstore/provider.go
+++ b/internal/repository/logstore/provider.go
@@ -105,20 +105,24 @@ func buildStore(ctx context.Context, database string, skipFreeze bool) (*Store,
 	case dbNameClickHouse:
 		ch := newClickHouseStore()
 		ch.skipFreeze = skipFreeze
+		ual := newClickHouseUserAccessLogStore()
+		ual.skipFreeze = skipFreeze
 		return &Store{
 			AccessLogs:     ch,
 			Observability:  ch,
-			UserAccessLogs: newClickHouseUserAccessLogStore(),
+			UserAccessLogs: ual,
 			Status:         ch,
 		}, nil
 	case dbNamePostgres, dbNameSQLite:
 		gdb := db.DB(ctx)
 		g := newGormStore(gdb)
 		g.skipFreeze = skipFreeze
+		ual := newUserAccessLogGormStore(gdb)
+		ual.skipFreeze = skipFreeze
 		return &Store{
 			AccessLogs:     g,
 			Observability:  g,
-			UserAccessLogs: newUserAccessLogGormStore(gdb),
+			UserAccessLogs: ual,
 			Status:         g,
 		}, nil
 	default: