diff --git a/src/main/java/com/ai/da/service/impl/AccountServiceImpl.java b/src/main/java/com/ai/da/service/impl/AccountServiceImpl.java
index eec39d47..d57bb6b3 100644
--- a/src/main/java/com/ai/da/service/impl/AccountServiceImpl.java
+++ b/src/main/java/com/ai/da/service/impl/AccountServiceImpl.java
@@ -306,6 +306,16 @@ public class AccountServiceImpl extends ServiceImpl<AccountMapper, Account> impl
         return accountList.get(0);
     }
 
+    private Account getByEmailIgnoreCase(String email) {
+        QueryWrapper<Account> queryWrapper = new QueryWrapper<>();
+        queryWrapper.eq("user_email", email);
+        List<Account> accountList = accountMapper.selectList(queryWrapper);
+        if (CollectionUtil.isEmpty(accountList)) {
+            throw new BusinessException("email.does.not.exist", ResultEnum.PROMPT.getCode());
+        }
+        return accountList.get(0);
+    }
+
     private Account getOneByUserName(String userName) {
         QueryWrapper<Account> queryWrapper = new QueryWrapper<>();
         queryWrapper.lambda().eq(Account::getUserName, userName);
@@ -1094,7 +1104,7 @@ public class AccountServiceImpl extends ServiceImpl<AccountMapper, Account> impl
                     Boolean flag = Boolean.FALSE;
                     try {
                         // 不是新用户 直接延长使用期限
-                        userInfo = getOneByEmail(email);
+                        userInfo = getByEmailIgnoreCase(email);
                     } catch (BusinessException e) {
                         // 通过邮箱找不到用户 说明是新用户 => 创建用户
                         flag = Boolean.TRUE;