diff --git a/eladmin-system/src/main/java/me/zhengjie/modules/system/service/impl/RoleServiceImpl.java b/eladmin-system/src/main/java/me/zhengjie/modules/system/service/impl/RoleServiceImpl.java
index f7e52b78..96b5d1d5 100644
--- a/eladmin-system/src/main/java/me/zhengjie/modules/system/service/impl/RoleServiceImpl.java
+++ b/eladmin-system/src/main/java/me/zhengjie/modules/system/service/impl/RoleServiceImpl.java
@@ -154,6 +154,9 @@ public class RoleServiceImpl implements RoleService {
 
     @Override
     public Integer findByRoles(Set<Role> roles) {
+        if (roles.size() == 0) {
+            return Integer.MAX_VALUE;
+        }
         Set<RoleDto> roleDtos = new HashSet<>();
         for (Role role : roles) {
             roleDtos.add(findById(role.getId()));