diff --git a/packages/code-generator/src/utils/schema.ts b/packages/code-generator/src/utils/schema.ts
new file mode 100644
index 000000000..9a19ed069
--- /dev/null
+++ b/packages/code-generator/src/utils/schema.ts
@@ -0,0 +1,5 @@
+import { ContainerSchema } from '@ali/lowcode-types';
+
+export function isContainerSchema(x: any): x is ContainerSchema {
+  return typeof x === 'object' && x && typeof x.componentName === 'string' && typeof x.fileName === 'string';
+}