diff --git a/sdk/utils/doc.go b/sdk/utils/doc.go
new file mode 100644
index 0000000000..67e1c5a661
--- /dev/null
+++ b/sdk/utils/doc.go
@@ -0,0 +1,4 @@
+// The utils package just degisned for github.com/aliyun/alibaba-clouc-sdk-go/sdk inner.
+// Don't use it in other places, we don't keep compability
+// We will change it to internal package in the future
+package utils