diff --git a/node_api/src/mikro-orm.config.ts b/node_api/src/mikro-orm.config.ts
index dc6644d..1befbc9 100644
--- a/node_api/src/mikro-orm.config.ts
+++ b/node_api/src/mikro-orm.config.ts
@@ -1,4 +1,4 @@
-import { defineConfig } from '@mikro-orm/mysql';
+import { type EntityMetadata, type Platform, defineConfig } from '@mikro-orm/mysql';
 import { EntityGenerator } from '@mikro-orm/entity-generator';
 import dotenv from 'dotenv';
 import path from 'path';
@@ -15,4 +15,18 @@ export default defineConfig({
   charset: 'utf8mb4',
   multipleStatements: true,
   extensions: [EntityGenerator],
+  // 生成实体时的配置
+  entityGenerator: {
+    // 在元数据处理阶段将 bigint 转换为 number
+    onProcessedMetadata: (metadata: EntityMetadata[], _platform: Platform) => {
+      metadata.forEach((meta) => {
+        Object.values(meta.properties).forEach((prop) => {
+          // 将 bigint 类型转换为 number，但保留 columnTypes 为 bigint
+          if (prop.columnTypes?.[0] === 'bigint' || prop.type === 'bigint') {
+            prop.type = 'number';
+          }
+        });
+      });
+    },
+  },
 });