diff --git a/mywust-common/src/main/java/cn/wustlinghang/mywust/exception/ApiException.java b/mywust-common/src/main/java/cn/wustlinghang/mywust/exception/ApiException.java
index fe126be..5c93f0f 100644
--- a/mywust-common/src/main/java/cn/wustlinghang/mywust/exception/ApiException.java
+++ b/mywust-common/src/main/java/cn/wustlinghang/mywust/exception/ApiException.java
@@ -104,6 +104,11 @@ public class ApiException extends BasicException {
          */
         UNDERGRAD_BANNED_IN_EXCLUSIVE_TIME(100108, "本科生登录：专属选课时间段账号被禁用"),
 
+        /**
+         * 用户名信息不存在（新生信息未录入或者老生删档）
+         */
+        UNDERGRAD_USERINFO_NOT_EXISTS(100109, "本科生登录：用户名信息（新生信息未录入或者老生删档）"),
+
         // --------------------------------
         // 共有异常码：cookie无效
 
diff --git a/mywust-core/src/main/java/cn/wustlinghang/mywust/core/request/service/auth/UndergraduateLogin.java b/mywust-core/src/main/java/cn/wustlinghang/mywust/core/request/service/auth/UndergraduateLogin.java
index 547dbe5..f85fccc 100644
--- a/mywust-core/src/main/java/cn/wustlinghang/mywust/core/request/service/auth/UndergraduateLogin.java
+++ b/mywust-core/src/main/java/cn/wustlinghang/mywust/core/request/service/auth/UndergraduateLogin.java
@@ -115,6 +115,9 @@ public class UndergraduateLogin {
         } else if (test.contains("禁用")) {
             // 选课时间段
             throw new ApiException(ApiException.Code.UNDERGRAD_BANNED_IN_EXCLUSIVE_TIME);
+        } else if (test.contains("不存在")) {
+            // 新生信息未录入/老生被删号
+            throw new ApiException(ApiException.Code.UNDERGRAD_USERINFO_NOT_EXISTS);
         }
 
         return true;
diff --git a/mywust-core/src/main/java/cn/wustlinghang/mywust/core/request/service/undergraduate/UndergradApiServiceBase.java b/mywust-core/src/main/java/cn/wustlinghang/mywust/core/request/service/undergraduate/UndergradApiServiceBase.java
index bbed51e..87c749e 100644
--- a/mywust-core/src/main/java/cn/wustlinghang/mywust/core/request/service/undergraduate/UndergradApiServiceBase.java
+++ b/mywust-core/src/main/java/cn/wustlinghang/mywust/core/request/service/undergraduate/UndergradApiServiceBase.java
@@ -1,13 +1,13 @@
 package cn.wustlinghang.mywust.core.request.service.undergraduate;
 
 import cn.wustlinghang.mywust.core.api.UndergradUrls;
-import cn.wustlinghang.mywust.network.request.RequestFactory;
 import cn.wustlinghang.mywust.core.util.BkjxUtil;
 import cn.wustlinghang.mywust.exception.ApiException;
 import cn.wustlinghang.mywust.network.RequestClientOption;
 import cn.wustlinghang.mywust.network.Requester;
 import cn.wustlinghang.mywust.network.entitys.HttpRequest;
 import cn.wustlinghang.mywust.network.entitys.HttpResponse;
+import cn.wustlinghang.mywust.network.request.RequestFactory;
 
 import java.io.IOException;
 import java.util.Map;
@@ -21,12 +21,13 @@ public abstract class UndergradApiServiceBase {
 
     public void checkResponse(HttpResponse response) throws ApiException {
         // 检查响应是否正确
-        if (response.getBody() == null ||
+        boolean cookieInvalid = response.getBody() == null ||
                 response.getStatusCode() != HttpResponse.HTTP_OK ||
-                BkjxUtil.needLogin(response.getBody()) ||
-                BkjxUtil.isBannedResponse(response)) {
-
+                BkjxUtil.needLogin(response.getBody());
+        if (cookieInvalid) {
             throw new ApiException(ApiException.Code.COOKIE_INVALID);
+        } else if (BkjxUtil.isBannedResponse(response)) {
+            throw new ApiException(ApiException.Code.UNDERGRAD_BANNED_IN_EXCLUSIVE_TIME);
         }
     }