diff --git a/application/accounts/urls.py b/application/accounts/urls.py
index 36a4fb7..c272395 100644
--- a/application/accounts/urls.py
+++ b/application/accounts/urls.py
@@ -2,8 +2,7 @@ from django.urls import path, include
 
 from django.contrib.auth import views as auth_views
 
-from application.accounts.views import logout_view, user_permissions_list, get_user_existing_permissions, \
-    save_user_permissions
+from application.accounts.views import logout_view, user_permissions_list, get_user_existing_permissions, save_user_permissions
 
 urlpatterns = [
     path('login/', auth_views.LoginView.as_view(template_name='accounts/login.html'), name='user_login'),
diff --git a/application/accounts/views.py b/application/accounts/views.py
index 0c3186e..2cfe4a4 100644
--- a/application/accounts/views.py
+++ b/application/accounts/views.py
@@ -224,19 +224,40 @@ def save_user_permissions(request, user_id):
     except ValueError:
         return JsonResponse({'error': 'Invalid JSON data'}, status=400)
 
-    # 清空用户的现有权限
-    user.user_permissions.clear()
+    # 处理修改后的权限项
+    for perm_id, perm_changes in permissions_data.get('permissions', {}).items():
+        try:
+            permission = Permission.objects.get(id=perm_id)
 
-    # 为用户分配新的权限
-    for perm in permissions_data.get('permissions', []):
-        permission = Permission.objects.get(id=perm['id'])
-        if perm.get('add'):
-            user.user_permissions.add(permission)
-        if perm.get('delete'):
-            user.user_permissions.remove(permission)
-        if perm.get('change'):
-            user.user_permissions.add(permission)
-        if perm.get('view'):
-            user.user_permissions.add(permission)
+            # 处理“新增”权限
+            if 'add_permission' in perm_changes:
+                if perm_changes['add_permission']:
+                    user.user_permissions.add(permission)
+                else:
+                    user.user_permissions.remove(permission)
+
+            # 处理“删除”权限
+            if 'delete_permission' in perm_changes:
+                if perm_changes['delete_permission']:
+                    user.user_permissions.add(permission)
+                else:
+                    user.user_permissions.remove(permission)
+
+            # 处理“修改”权限
+            if 'edit_permission' in perm_changes:
+                if perm_changes['edit_permission']:
+                    user.user_permissions.add(permission)
+                else:
+                    user.user_permissions.remove(permission)
+
+            # 处理“查看”权限
+            if 'view_permission' in perm_changes:
+                if perm_changes['view_permission']:
+                    user.user_permissions.add(permission)
+                else:
+                    user.user_permissions.remove(permission)
+
+        except Permission.DoesNotExist:
+            continue
 
     return JsonResponse({'success': True, 'message': 'Permissions updated successfully'})
diff --git a/templates/authority_modal.html b/templates/authority_modal.html
index 44da175..3bfdc46 100644
--- a/templates/authority_modal.html
+++ b/templates/authority_modal.html
@@ -55,6 +55,7 @@ $(document).ready(function() {
     const itemsPerPage = 10;
     let currentPage = 1;
     let permissionsData = [];
+    let modifiedPermissions = {};
 
     function renderTable(page) {
         const start = (page - 1) * itemsPerPage;
@@ -139,6 +140,16 @@ $(document).ready(function() {
         });
     });
 
+    // 监听权限复选框的更改
+    $('#permissionsTable').on('change', 'input[type="checkbox"]', function() {
+        const permId = $(this).data('id');
+        const permType = $(this).attr('name');
+        if (!modifiedPermissions[permId]) {
+            modifiedPermissions[permId] = {};
+        }
+        modifiedPermissions[permId][permType] = $(this).is(':checked');
+    });
+
     $('#savePermissions').on('click', function() {
         const userId = $(this).data('user-id'); // 从按钮的data-user-id属性中获取用户ID
         if (!userId) {
@@ -148,19 +159,11 @@ $(document).ready(function() {
 
         const url = "{% url 'save_user_permissions' 0 %}".replace('0', userId);
 
-        const updatedPermissions = permissionsData.map(perm => ({
-            id: perm.id,
-            add: $(`input[name="add_permission"][data-id="${perm.id}"]`).is(':checked'),
-            delete: $(`input[name="delete_permission"][data-id="${perm.id}"]`).is(':checked'),
-            change: $(`input[name="edit_permission"][data-id="${perm.id}"]`).is(':checked'),
-            view: $(`input[name="view_permission"][data-id="${perm.id}"]`).is(':checked')
-        }));
-
         $.ajax({
             url: url,
             type: 'POST',
             contentType: 'application/json',
-            data: JSON.stringify({ permissions: updatedPermissions }),
+            data: JSON.stringify({ permissions: modifiedPermissions }),
             headers: {
                 'X-CSRFToken': csrftoken // 添加CSRF令牌
             },