diff --git a/springboot-backend/src/main/java/com/admin/config/SQLiteConfig.java b/springboot-backend/src/main/java/com/admin/config/SQLiteConfig.java
index 8d413da..550cc22 100644
--- a/springboot-backend/src/main/java/com/admin/config/SQLiteConfig.java
+++ b/springboot-backend/src/main/java/com/admin/config/SQLiteConfig.java
@@ -10,7 +10,12 @@ import org.springframework.stereotype.Component;
 import javax.annotation.PreDestroy;
 import javax.sql.DataSource;
 import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
 import java.sql.Statement;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.regex.Pattern;
 
 /**
  * SQLite 数据库配置
@@ -39,13 +44,98 @@ public class SQLiteConfig implements ApplicationRunner {
             statement.execute("PRAGMA temp_store=MEMORY;");
             statement.execute("PRAGMA busy_timeout=5000;"); // 5秒超时
             statement.execute("PRAGMA wal_autocheckpoint=1000;"); // 每1000页自动checkpoint
-            
+
+            ensureNodeDualStackColumns(connection);
+             
             log.info("SQLite WAL mode configured successfully");
         } catch (Exception e) {
             log.error("Failed to configure SQLite database", e);
             throw e;
         }
     }
+
+    private void ensureNodeDualStackColumns(Connection connection) throws Exception {
+        Set<String> cols = getTableColumns(connection, "node");
+        if (cols.isEmpty()) {
+            return;
+        }
+
+        ensureColumnIfMissing(connection, cols, "node", "server_ip_v4", "VARCHAR(100)");
+        ensureColumnIfMissing(connection, cols, "node", "server_ip_v6", "VARCHAR(100)");
+
+        backfillNodeDualStackColumns(connection);
+    }
+
+    private void backfillNodeDualStackColumns(Connection connection) throws Exception {
+        Pattern ipv4 = Pattern.compile("^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$");
+
+        try (Statement statement = connection.createStatement();
+             ResultSet rs = statement.executeQuery("SELECT id, server_ip, server_ip_v4, server_ip_v6 FROM node;");
+             PreparedStatement updV4 = connection.prepareStatement("UPDATE node SET server_ip_v4 = ? WHERE id = ?;");
+             PreparedStatement updV6 = connection.prepareStatement("UPDATE node SET server_ip_v6 = ? WHERE id = ?;")
+        ) {
+            while (rs.next()) {
+                long id = rs.getLong("id");
+                String serverIp = rs.getString("server_ip");
+                String v4 = rs.getString("server_ip_v4");
+                String v6 = rs.getString("server_ip_v6");
+
+                if (serverIp == null || serverIp.isBlank()) {
+                    continue;
+                }
+                if ((v4 != null && !v4.isBlank()) || (v6 != null && !v6.isBlank())) {
+                    continue;
+                }
+
+                String trimmed = serverIp.trim();
+
+                if (ipv4.matcher(trimmed).matches()) {
+                    updV4.setString(1, trimmed);
+                    updV4.setLong(2, id);
+                    updV4.executeUpdate();
+                } else {
+                    long colonCount = trimmed.chars().filter(ch -> ch == ':').count();
+                    if (colonCount >= 2) {
+                        updV6.setString(1, trimmed);
+                        updV6.setLong(2, id);
+                        updV6.executeUpdate();
+                    }
+                }
+            }
+        }
+    }
+
+    private Set<String> getTableColumns(Connection connection, String table) throws Exception {
+        Set<String> cols = new HashSet<>();
+        try (Statement statement = connection.createStatement();
+             ResultSet rs = statement.executeQuery("PRAGMA table_info(" + table + ");")) {
+            while (rs.next()) {
+                String name = rs.getString("name");
+                if (name != null && !name.isBlank()) {
+                    cols.add(name);
+                }
+            }
+        }
+        return cols;
+    }
+
+    private void ensureColumnIfMissing(
+            Connection connection,
+            Set<String> existingColumns,
+            String table,
+            String column,
+            String type
+    ) throws Exception {
+        if (existingColumns.contains(column)) {
+            return;
+        }
+
+        try (Statement statement = connection.createStatement()) {
+            statement.execute("ALTER TABLE " + table + " ADD COLUMN " + column + " " + type + ";");
+        }
+
+        log.info("SQLite schema updated: added {}.{}", table, column);
+    }
     
     /**
      * 定期执行 checkpoint，确保 WAL 文件内容写入主数据库
@@ -80,4 +170,3 @@ public class SQLiteConfig implements ApplicationRunner {
         }
     }
 }
-