diff --git a/backend/package-lock.json b/backend/package-lock.json
index ebf1fa7..5fdb22b 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -22,7 +22,6 @@
         "pg": "^8.16.0",
         "reflect-metadata": "^0.2.2",
         "rxjs": "^7.8.2",
-        "typeorm": "^0.3.24",
         "uid": "^2.0.2"
       },
       "devDependencies": {
@@ -31,6 +30,7 @@
         "rimraf": "^6.0.1",
         "ts-node": "^10.9.2",
         "tsconfig-paths": "^4.2.0",
+        "typeorm": "^0.3.24",
         "typescript": "^5.8.3"
       }
     },
diff --git a/backend/package.json b/backend/package.json
index 1a16f1e..3d0ad6b 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -7,8 +7,11 @@
     "build": "rimraf dist && tsc",
     "start": "npm run build && node dist/main.js",
     "dev": "ts-node -r tsconfig-paths/register src/main.ts",
-    "typeorm": "typeorm-ts-node-commonjs -d dist/data-source.js",
-    "test": "echo \"Error: no test specified\" && exit 1"
+     "typeorma": "typeorm-ts-node-commonjs -d dist/data-source.js",
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "typeorm": "ts-node -r ts-node/register ./node_modules/typeorm/cli.js",
+    "migration:generate": "npm run typeorm  migration:generate -d dist/data-source.js",
+    "migration:run": "npm run typeorm migration:run -- --dataSource dist/data-source.js"
   },
   "keywords": [],
   "author": "",
@@ -27,7 +30,6 @@
     "pg": "^8.16.0",
     "reflect-metadata": "^0.2.2",
     "rxjs": "^7.8.2",
-    "typeorm": "^0.3.24",
     "uid": "^2.0.2"
   },
   "devDependencies": {
@@ -36,6 +38,7 @@
     "rimraf": "^6.0.1",
     "ts-node": "^10.9.2",
     "tsconfig-paths": "^4.2.0",
+    "typeorm": "^0.3.24",
     "typescript": "^5.8.3"
   }
 }
diff --git a/backend/src/migrations/1690_add_foreign_keys.ts b/backend/src/migrations/1690_add_foreign_keys.ts
new file mode 100644
index 0000000..e1c5988
--- /dev/null
+++ b/backend/src/migrations/1690_add_foreign_keys.ts
@@ -0,0 +1,57 @@
+import { MigrationInterface, QueryRunner } from 'typeorm';
+
+export class AddForeignKeys1690 implements MigrationInterface {
+  async up(queryRunner: QueryRunner): Promise<void> {
+    // 1. User与Workspace的关联
+    await queryRunner.query(`
+      ALTER TABLE "user"
+      ADD CONSTRAINT "fk_user_workspace"
+      FOREIGN KEY ("workspaceId")
+      REFERENCES "workspace"("id")
+      ON DELETE CASCADE
+    `);
+
+    // 2. AiConfig与Workspace的关联
+    await queryRunner.query(`
+      ALTER TABLE "ai_config"
+      ADD CONSTRAINT "fk_ai_config_workspace"
+      FOREIGN KEY ("workspaceId")
+      REFERENCES "workspace"("id")
+      ON DELETE CASCADE
+    `);
+
+    // 3. Project与Workspace的关联
+    await queryRunner.query(`
+      ALTER TABLE "project"
+      ADD CONSTRAINT "fk_project_workspace"
+      FOREIGN KEY ("workspaceId")
+      REFERENCES "workspace"("id")
+      ON DELETE CASCADE
+    `);
+
+    // 4. PluginConfig与Workspace的关联
+    await queryRunner.query(`
+      ALTER TABLE "plugin_config"
+      ADD CONSTRAINT "fk_plugin_config_workspace"
+      FOREIGN KEY ("workspaceId")
+      REFERENCES "workspace"("id")
+      ON DELETE CASCADE
+    `);
+  }
+
+  async down(queryRunner: QueryRunner): Promise<void> {
+    // 删除外键约束
+    const foreignKeys = [
+      'fk_user_workspace',
+      'fk_ai_config_workspace',
+      'fk_project_workspace',
+      'fk_plugin_config_workspace'
+    ];
+
+    for (const fk of foreignKeys) {
+      await queryRunner.query(
+        `ALTER TABLE ${fk.split('_').slice(2).join('_')} DROP CONSTRAINT ${fk}`
+      );
+    }
+  }
+}
\ No newline at end of file