diff --git a/utils/ldap_lib/ldap_group.go b/utils/ldap_lib/ldap_group.go
index 93e234a7..1949a1de 100644
--- a/utils/ldap_lib/ldap_group.go
+++ b/utils/ldap_lib/ldap_group.go
@@ -41,7 +41,7 @@ func (l *Ldap) Delete(DN string) error {
 // 查询资源(分组/用户)
 func (l *Ldap) Search(DN, filter string, attr []string, controls []ldap.Control) (resp *ldap.SearchResult, err error) {
 	if filter == "" {
-		filter = "(objectClass=*)"
+		filter = "(objectClass=*)" //查询多个 与(&(objectClass=a)(objectClass=b)) 或  (|(objectClass=a)(objectClass=b))
 	}
 	searchRequest := ldap.NewSearchRequest(
 		DN,