diff --git a/keyBoard/Class/AiTalk/VM/AiVM.h b/keyBoard/Class/AiTalk/VM/AiVM.h
index 291cc85..e53a27a 100644
--- a/keyBoard/Class/AiTalk/VM/AiVM.h
+++ b/keyBoard/Class/AiTalk/VM/AiVM.h
@@ -111,6 +111,12 @@ typedef void (^AiVMSpeechTranscribeCompletion)(KBAiSpeechTranscribeResponse *_Nu
                                 pageSize:(NSInteger)pageSize
                               completion:(void(^)(KBChatHistoryPageModel * _Nullable pageModel, NSError * _Nullable error))completion;
 
+/// 删除聊天记录（根据聊天记录 ID 逻辑删除聊天消息）
+/// @param historyId 聊天记录 ID（接口字段为 id）
+/// @param completion 完成回调
+- (void)deleteChatHistoryWithId:(NSInteger)historyId
+                     completion:(void(^)(BOOL success, NSError * _Nullable error))completion;
+
 #pragma mark - 评论相关接口
 
 /// 发表评论
diff --git a/keyBoard/Class/AiTalk/VM/AiVM.m b/keyBoard/Class/AiTalk/VM/AiVM.m
index 27c14d7..11438ef 100644
--- a/keyBoard/Class/AiTalk/VM/AiVM.m
+++ b/keyBoard/Class/AiTalk/VM/AiVM.m
@@ -426,6 +426,68 @@ autoShowBusinessError:NO
     }];
 }
 
+- (void)deleteChatHistoryWithId:(NSInteger)historyId
+                     completion:(void (^)(BOOL, NSError * _Nullable))completion {
+    if (historyId <= 0) {
+        NSError *error = [NSError errorWithDomain:@"AiVM"
+                                             code:-1
+                                         userInfo:@{NSLocalizedDescriptionKey : @"invalid historyId"}];
+        if (completion) {
+            completion(NO, error);
+        }
+        return;
+    }
+    
+    NSDictionary *params = @{
+        @"id": @(historyId)
+    };
+    
+    NSLog(@"[AiVM] /chat/history/delete request: %@", params);
+    [[KBNetworkManager shared]
+              POST:@"/chat/history/delete"
+          jsonBody:params
+           headers:nil
+autoShowBusinessError:NO
+        completion:^(NSDictionary *_Nullable json,
+                     NSURLResponse *_Nullable response,
+                     NSError *_Nullable error) {
+        if (error) {
+            NSLog(@"[AiVM] /chat/history/delete failed: %@", error.localizedDescription ?: @"");
+            if (completion) {
+                completion(NO, error);
+            }
+            return;
+        }
+        
+        NSLog(@"[AiVM] /chat/history/delete response: %@", json);
+        if (![json isKindOfClass:[NSDictionary class]]) {
+            NSError *parseError = [NSError errorWithDomain:@"AiVM"
+                                                      code:-1
+                                                  userInfo:@{NSLocalizedDescriptionKey : @"数据格式错误"}];
+            if (completion) {
+                completion(NO, parseError);
+            }
+            return;
+        }
+        
+        NSInteger code = [json[@"code"] integerValue];
+        if (code != 0) {
+            NSString *message = json[@"message"] ?: @"请求失败";
+            NSError *bizError = [NSError errorWithDomain:@"AiVM"
+                                                    code:code
+                                                userInfo:@{NSLocalizedDescriptionKey : message}];
+            if (completion) {
+                completion(NO, bizError);
+            }
+            return;
+        }
+        
+        if (completion) {
+            completion(YES, nil);
+        }
+    }];
+}
+
 #pragma mark - 评论相关接口
 
 - (void)addCommentWithCompanionId:(NSInteger)companionId