diff --git a/keyBoard/Class/AiTalk/M/KBAiChatMessage.h b/keyBoard/Class/AiTalk/M/KBAiChatMessage.h
index ca5efd1..ef66c23 100644
--- a/keyBoard/Class/AiTalk/M/KBAiChatMessage.h
+++ b/keyBoard/Class/AiTalk/M/KBAiChatMessage.h
@@ -22,6 +22,9 @@ typedef NS_ENUM(NSInteger, KBAiChatMessageType) {
 /// 消息类型
 @property (nonatomic, assign) KBAiChatMessageType type;
 
+/// 聊天记录 ID（服务端返回的 id，用于删除等操作；0 表示本地临时消息）
+@property (nonatomic, assign) NSInteger historyId;
+
 /// 文本内容
 @property (nonatomic, copy) NSString *text;
 
diff --git a/keyBoard/Class/AiTalk/V/Chat/KBPersonaChatCell.m b/keyBoard/Class/AiTalk/V/Chat/KBPersonaChatCell.m
index 8d11c4b..2c47029 100644
--- a/keyBoard/Class/AiTalk/V/Chat/KBPersonaChatCell.m
+++ b/keyBoard/Class/AiTalk/V/Chat/KBPersonaChatCell.m
@@ -354,6 +354,7 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
             
             message.isComplete = YES;
             message.needsTypewriterEffect = NO;
+            message.historyId = item.messageId;
             [newMessages addObject:message];
 //            [newMessages insertObject:message atIndex:0];
         }
@@ -931,7 +932,13 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
         } break;
         case KBChatMessageActionTypeDelete: {
             NSInteger idx = [self.messages indexOfObjectIdenticalTo:message];
-            if (idx != NSNotFound) {
+            if (idx == NSNotFound) {
+                return;
+            }
+            
+            NSInteger historyId = message.historyId;
+            // 没有服务端 id 的消息（本地临时/开场白等），直接本地删除即可
+            if (historyId <= 0) {
                 [self.messages removeObjectAtIndex:idx];
                 [self.chatView reloadWithMessages:self.messages
                                        keepOffset:YES
@@ -944,7 +951,44 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
                         [[KBAIChatMessageCacheManager shared] clearMessagesForCompanionId:self.persona.personaId];
                     }
                 }
+                return;
             }
+            
+            [KBHUD show];
+            __weak typeof(self) weakSelf = self;
+            [self.aiVM deleteChatHistoryWithId:historyId completion:^(BOOL success, NSError * _Nullable error) {
+                dispatch_async(dispatch_get_main_queue(), ^{
+                    [KBHUD dismiss];
+                    if (!success || error) {
+                        NSString *msg = error.localizedDescription ?: KBLocalized(@"删除失败，请重试");
+                        [KBHUD showError:msg];
+                        return;
+                    }
+                    
+                    __strong typeof(weakSelf) strongSelf = weakSelf;
+                    if (!strongSelf) {
+                        return;
+                    }
+                    
+                    NSInteger idx2 = [strongSelf.messages indexOfObjectIdenticalTo:message];
+                    if (idx2 == NSNotFound) {
+                        return;
+                    }
+                    
+                    [strongSelf.messages removeObjectAtIndex:idx2];
+                    [strongSelf.chatView reloadWithMessages:strongSelf.messages
+                                                 keepOffset:YES
+                                            scrollToBottom:NO];
+                    if (strongSelf.persona.personaId > 0) {
+                        if (strongSelf.messages.count > 0) {
+                            [[KBAIChatMessageCacheManager shared] saveMessages:strongSelf.messages
+                                                                 forCompanionId:strongSelf.persona.personaId];
+                        } else {
+                            [[KBAIChatMessageCacheManager shared] clearMessagesForCompanionId:strongSelf.persona.personaId];
+                        }
+                    }
+                });
+            }];
         } break;
         case KBChatMessageActionTypeReport: {
             if (self.persona.personaId <= 0) {