diff --git a/frontend/src/global/form-rules.ts b/frontend/src/global/form-rules.ts
index 9f7eead18..7ed511dc2 100644
--- a/frontend/src/global/form-rules.ts
+++ b/frontend/src/global/form-rules.ts
@@ -47,7 +47,7 @@ const checkName = (rule: any, value: any, callback: any) => {
     if (value === '' || typeof value === 'undefined' || value == null) {
         callback(new Error(i18n.global.t('commons.rule.commonName')));
     } else {
-        const reg = /^[a-zA-Z0-9\u4e00-\u9fa5]{1}[a-zA-Z0-9_.\u4e00-\u9fa5-]{0,30}$/;
+        const reg = /^[a-zA-Z0-9\u4e00-\u9fa5]{1}[a-zA-Z0-9_.\u4e00-\u9fa5-]{1,29}$/;
         if (!reg.test(value) && value !== '') {
             callback(new Error(i18n.global.t('commons.rule.commonName')));
         } else {