diff --git a/docs-2.0/7.data-security/1.authentication/3.role-list.md b/docs-2.0/7.data-security/1.authentication/3.role-list.md
index 380cd9d2a0c..44f98fb2230 100644
--- a/docs-2.0/7.data-security/1.authentication/3.role-list.md
+++ b/docs-2.0/7.data-security/1.authentication/3.role-list.md
@@ -129,6 +129,7 @@ SHOW GRANTS [<user_name>]
 - The default Basic role does not have any Tag/Edge read and write permissions.
 - Only GOD and ADMIN role users can perform GRANT and REVOKE operations.
 - Only allow users to GRANT and REVOKE the Basic role in the specified graph space, and are not allowed to grant authorization to other role users.
+- The Basic role **cannot** insert vertices without a tag.
 
 ### Examples