diff --git a/backend/src/main/java/io/dataease/service/sys/SysUserService.java b/backend/src/main/java/io/dataease/service/sys/SysUserService.java
index 3b0eaf57b2..ef35534000 100644
--- a/backend/src/main/java/io/dataease/service/sys/SysUserService.java
+++ b/backend/src/main/java/io/dataease/service/sys/SysUserService.java
@@ -73,6 +73,7 @@ public class SysUserService {
 
     @Transactional
     public int save(SysUserCreateRequest request) {
+        request.setUsername(request.getUsername().trim());
         checkUsername(request);
         checkEmail(request);
         checkNickName(request);