diff --git a/packages/core/client/src/collection-manager/interfaces/index.ts b/packages/core/client/src/collection-manager/interfaces/index.ts
index e2a1dfd747..2a25abb4a3 100644
--- a/packages/core/client/src/collection-manager/interfaces/index.ts
+++ b/packages/core/client/src/collection-manager/interfaces/index.ts
@@ -48,3 +48,5 @@ export * from './nanoid';
 export * from './unixTimestamp';
 export * from './dateOnly';
 export * from './datetimeNoTz';
+
+export { getUniqueKeyFromCollection } from './utils';
diff --git a/packages/plugins/@nocobase/plugin-field-m2m-array/src/client/mbm.ts b/packages/plugins/@nocobase/plugin-field-m2m-array/src/client/mbm.ts
index 5e9acd0bda..f64df33258 100644
--- a/packages/plugins/@nocobase/plugin-field-m2m-array/src/client/mbm.ts
+++ b/packages/plugins/@nocobase/plugin-field-m2m-array/src/client/mbm.ts
@@ -8,14 +8,10 @@
  */
 
 import { ISchema } from '@formily/react';
-import { Collection, CollectionFieldInterface } from '@nocobase/client';
+import { CollectionFieldInterface, getUniqueKeyFromCollection } from '@nocobase/client';
 import { tval } from '@nocobase/utils/client';
 import { NAMESPACE } from './locale';
 
-function getUniqueKeyFromCollection(collection: Collection) {
-  return collection?.filterTargetKey?.[0] || collection?.filterTargetKey || collection?.getPrimaryKey() || 'id';
-}
-
 export class MBMFieldInterface extends CollectionFieldInterface {
   name = 'mbm';
   type = 'object';