diff --git a/frontend/src/views/Register.tsx b/frontend/src/views/Register.tsx
index 192f9dd..4638c67 100644
--- a/frontend/src/views/Register.tsx
+++ b/frontend/src/views/Register.tsx
@@ -165,8 +165,8 @@ export default function SignUp() {
                                 }}
                                 checkList={[
                                     {
-                                        errMsg: "长度在 3-16 之间",
-                                        reg: /^.{3,16}$/
+                                        errMsg: "长度在 3-16 之间，由数字、大小写字母、_构成",
+                                        reg: /[0-9a-zA-Z_]{3,16}/
                                     }
                                 ]}
                                 required