diff --git a/src/TelegramPanel.Core/Services/BotManagementService.cs b/src/TelegramPanel.Core/Services/BotManagementService.cs
index 7f1f313..28a3873 100644
--- a/src/TelegramPanel.Core/Services/BotManagementService.cs
+++ b/src/TelegramPanel.Core/Services/BotManagementService.cs
@@ -1,3 +1,4 @@
+using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Logging;
 using TelegramPanel.Data.Entities;
 using TelegramPanel.Data.Repositories;
@@ -75,7 +76,14 @@ public class BotManagementService
         if (bot == null)
             return;
 
-        await _botRepository.DeleteAsync(bot);
+        try
+        {
+            await _botRepository.DeleteAsync(bot);
+        }
+        catch (DbUpdateConcurrencyException)
+        {
+            // 视为已被删除（幂等）
+        }
     }
 
     public async Task<IEnumerable<BotChannelCategory>> GetCategoriesAsync(int botId)
@@ -119,7 +127,9 @@ public class BotManagementService
 
     public async Task<IEnumerable<BotChannel>> GetChannelsAsync(int botId, int? categoryId = null)
     {
-        return await _botChannelRepository.GetForBotAsync(botId, categoryId);
+        // Bot 频道列表仅展示“频道”（不展示群组/超级群组）
+        var list = await _botChannelRepository.GetForBotAsync(botId, categoryId);
+        return list.Where(x => x.IsBroadcast);
     }
 
     public async Task<BotChannel> UpsertChannelAsync(BotChannel channel)
diff --git a/src/TelegramPanel.Core/Services/Telegram/BotTelegramService.cs b/src/TelegramPanel.Core/Services/Telegram/BotTelegramService.cs
index 4a1f377..03e95c4 100644
--- a/src/TelegramPanel.Core/Services/Telegram/BotTelegramService.cs
+++ b/src/TelegramPanel.Core/Services/Telegram/BotTelegramService.cs
@@ -52,7 +52,7 @@ public class BotTelegramService
         if (result.ValueKind != JsonValueKind.Array)
             return 0;
 
-        // Telegram 会针对同一个频道连续产生多条 my_chat_member（例如 member -> administrator），
+        // Telegram 会针对同一个 chat 连续产生多条 my_chat_member（例如 member -> administrator），
         // 这里按 chat_id 去重并只应用“最后一次状态”，避免“新增两个”的错觉/重复写库。
         var changesByChatId = new Dictionary<long, BotChatMemberChange>();
         long? maxUpdateId = null;
@@ -76,10 +76,6 @@ public class BotTelegramService
             if (!TryParseChatMemberUpdate(myChatMember, out var chat, out var status))
                 continue;
 
-            // 仅同步“频道”（不包含群组/超级群组），避免把讨论群等误当成频道条目
-            if (chat.Type is not "channel")
-                continue;
-
             changesByChatId[chat.Id] = new BotChatMemberChange(chat, status);
         }
 
@@ -91,6 +87,14 @@ public class BotTelegramService
             var chatId = kv.Key;
             var change = kv.Value;
 
+            // 本系统 Bot 只管理频道（channel）；如果收到群组/超级群组更新，则仅用于“清理旧数据”，避免列表统计被污染。
+            if (change.Chat.Type is not "channel")
+            {
+                await _botManagement.DeleteChannelByTelegramIdAsync(bot.Id, chatId);
+                affected++;
+                continue;
+            }
+
             // 只把“具备管理员/创建者权限”的频道纳入 Bot 列表；
             // left/kicked 或降权为 member 等，直接从列表移除（否则导出邀请会失败且列表不准）。
             if (change.Status is "administrator" or "creator")
diff --git a/src/TelegramPanel.Web/Components/Pages/Bots.razor b/src/TelegramPanel.Web/Components/Pages/Bots.razor
index beaf7ed..cab0ef9 100644
--- a/src/TelegramPanel.Web/Components/Pages/Bots.razor
+++ b/src/TelegramPanel.Web/Components/Pages/Bots.razor
@@ -49,7 +49,7 @@
                     <RowTemplate>
                         <MudTd DataLabel="名称">@context.Name</MudTd>
                         <MudTd DataLabel="用户名">@(!string.IsNullOrWhiteSpace(context.Username) ? $"@{context.Username}" : "-")</MudTd>
-                        <MudTd DataLabel="频道数">@context.Channels.Count</MudTd>
+                        <MudTd DataLabel="频道数">@context.Channels.Count(x => x.IsBroadcast)</MudTd>
                         <MudTd DataLabel="分类数">@context.Categories.Count</MudTd>
                         <MudTd DataLabel="最后同步">@((context.LastSyncAt.HasValue ? context.LastSyncAt.Value.ToString("yyyy-MM-dd HH:mm") : "-"))</MudTd>
                         <MudTd DataLabel="状态">