diff --git a/modules/permission-management/src/Volo.Abp.PermissionManagement.Blazor/Components/PermissionManagementModal.razor.cs b/modules/permission-management/src/Volo.Abp.PermissionManagement.Blazor/Components/PermissionManagementModal.razor.cs
index 8a5c82e734e..4a55b75df8e 100644
--- a/modules/permission-management/src/Volo.Abp.PermissionManagement.Blazor/Components/PermissionManagementModal.razor.cs
+++ b/modules/permission-management/src/Volo.Abp.PermissionManagement.Blazor/Components/PermissionManagementModal.razor.cs
@@ -17,7 +17,7 @@ public partial class PermissionManagementModal
     [Inject] protected ICurrentApplicationConfigurationCacheResetService CurrentApplicationConfigurationCacheResetService { get; set; }
 
     [Inject] protected IOptions<AbpLocalizationOptions> LocalizationOptions { get; set; }
-    
+
     protected Modal _modal;
 
     protected string _providerName;
@@ -71,7 +71,7 @@ protected bool GrantAll {
             }
         }
     }
-    
+
     protected Dictionary<string, int> _permissionDepths = new Dictionary<string, int>();
 
     public PermissionManagementModal()
@@ -137,7 +137,7 @@ protected virtual async Task SaveAsync()
     {
         try
         {
-            
+
             var updateDto = new UpdatePermissionsDto
             {
                 Permissions = _groups
@@ -145,7 +145,7 @@ protected virtual async Task SaveAsync()
                     .Select(p => new UpdatePermissionDto { IsGranted = p.IsGranted, Name = p.Name })
                     .ToArray()
             };
-            
+
             if (!updateDto.Permissions.Any(x => x.IsGranted))
             {
                 if (!await Message.Confirm(L["SaveWithoutAnyPermissionsWarningMessage"].Value))
@@ -182,7 +182,7 @@ protected virtual void SetPermissionDepths(List<PermissionGrantInfoDto> permissi
             }
         }
     }
-    
+
     protected virtual int GetPermissionDepthOrDefault(string name)
     {
         return _permissionDepths.GetValueOrDefault(name, 0);
@@ -207,7 +207,7 @@ protected virtual void PermissionChanged(bool value, PermissionGroupDto permissi
         {
             SetParentPermissionGrant(permissionGroup, permission);
         }
-        else if (value == false)
+        else
         {
             var childPermissions = GetChildPermissions(permissionGroup, permission);
 
@@ -229,7 +229,7 @@ private void SetParentPermissionGrant(PermissionGroupDto permissionGroup, Permis
         SetPermissionGrant(parentPermission, true);
 
         SetParentPermissionGrant(permissionGroup, parentPermission);
-        
+
     }
 
     private void SetPermissionGrant(PermissionGrantInfoDto permission, bool value)
@@ -260,7 +260,25 @@ protected PermissionGrantInfoDto GetParentPermission(PermissionGroupDto permissi
 
     protected List<PermissionGrantInfoDto> GetChildPermissions(PermissionGroupDto permissionGroup, PermissionGrantInfoDto permission)
     {
-        return permissionGroup.Permissions.Where(x => x.Name.StartsWith(permission.Name)).ToList();
+        var childPermissions = new List<PermissionGrantInfoDto>();
+        GetChildPermissions(childPermissions, permissionGroup.Permissions, permission);
+        return childPermissions;
+    }
+
+    protected void GetChildPermissions(List<PermissionGrantInfoDto> allChildPermissions, List<PermissionGrantInfoDto> permissions, PermissionGrantInfoDto permission)
+    {
+        var childPermissions = permissions.Where(x => x.ParentName == permission.Name).ToList();
+        if (childPermissions.Count == 0)
+        {
+            return;
+        }
+
+        allChildPermissions.AddRange(childPermissions);
+
+        foreach (var childPermission in childPermissions)
+        {
+            GetChildPermissions(allChildPermissions, permissions, childPermission);
+        }
     }
 
     protected bool IsDisabledPermission(PermissionGrantInfoDto permissionGrantInfo)