diff --git a/zh-cn/application-dev/reference/apis/js-apis-cryptoFramework.md b/zh-cn/application-dev/reference/apis/js-apis-cryptoFramework.md
index ba5f0890e965eae69492c42dfc7014a059c85161..0c80adbe729fabcdff44ca7009521f8963eb2820 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-cryptoFramework.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-cryptoFramework.md
@@ -2217,6 +2217,8 @@ sign(data : DataBlob) : Promise\<DataBlob>
 | -------------- | ----------- |
 | Promise\<void> | Promise对象 |
 
+**错误码：**
+
 | 错误码ID | 错误信息               |
 | -------- | ---------------------- |
 | 17620001 | memory error.          |