diff --git a/config/config.yaml b/config/config.yaml
index 2e6903f..85769d0 100644
--- a/config/config.yaml
+++ b/config/config.yaml
@@ -31,7 +31,7 @@ lsxd:
 
   
 sys:
-  session_len: 6
+  session_len: 3
   channel_pool_len: 100
   channel_pool_size: 32
   llm_pool_len: 5
diff --git a/config/config_env.yaml b/config/config_env.yaml
index b571f51..0e002e0 100644
--- a/config/config_env.yaml
+++ b/config/config_env.yaml
@@ -32,7 +32,7 @@ lsxd:
 
 
 sys:
-  session_len: 6
+  session_len: 3
   channel_pool_len: 100
   channel_pool_size: 32
   llm_pool_len: 5
diff --git a/config/config_test.yaml b/config/config_test.yaml
index 7355304..2e9e778 100644
--- a/config/config_test.yaml
+++ b/config/config_test.yaml
@@ -32,7 +32,7 @@ lsxd:
   check_token_url: "https://api.user.1688sup.com/v1/user/welcome"
 
 sys:
-  session_len: 6
+  session_len: 3
   channel_pool_len: 100
   channel_pool_size: 32
   llm_pool_len: 5
diff --git a/internal/biz/router.go b/internal/biz/router.go
index 7d045f8..2d827dc 100644
--- a/internal/biz/router.go
+++ b/internal/biz/router.go
@@ -174,14 +174,15 @@ func (r *AiRouterBiz) buildChatHistory(requireData *entitys.RequireData) entitys
 		// 用户消息
 		messages = append(messages, entitys.HisMessage{
 			Role:      constants.RoleUser, // 用户角色
-			Content:   h.Ans,              // 用户输入内容
+			Content:   h.Ques,             // 用户输入内容
 			Timestamp: h.CreateAt.Format(time.DateTime),
 		})
 
 		// 助手消息
+		ansStr := r.ansNoiseReduction(h.Ans) // 助手回复降噪
 		messages = append(messages, entitys.HisMessage{
 			Role:      constants.RoleAssistant, // 助手角色
-			Content:   h.Ques,                  // 助手回复内容
+			Content:   ansStr,                  // 助手回复内容
 			Timestamp: h.CreateAt.Format(time.DateTime),
 		})
 	}
@@ -196,3 +197,20 @@ func (r *AiRouterBiz) buildChatHistory(requireData *entitys.RequireData) entitys
 		},
 	}
 }
+
+// ansNoiseReduction 助手回复降噪
+func (r *AiRouterBiz) ansNoiseReduction(ansJson string) string {
+	// 使用anw统一类型解析
+	ansStruct := make([]*entitys.Response, 0)
+	err := json.Unmarshal([]byte(ansJson), &ansStruct)
+	if err != nil {
+		log.Errorf("解析助手回复失败: %s", err.Error())
+		return ansJson
+	}
+	var ansStr string
+	for _, item := range ansStruct {
+		ansStr += item.Content
+	}
+
+	return ansStr
+}
diff --git a/internal/pkg/utils_ollama/client.go b/internal/pkg/utils_ollama/client.go
index fa88afa..febd8cd 100644
--- a/internal/pkg/utils_ollama/client.go
+++ b/internal/pkg/utils_ollama/client.go
@@ -53,6 +53,7 @@ func (c *Client) ToolSelect(ctx context.Context, messages []api.Message, tools [
 		res = resp
 		return nil
 	})
+
 	if err != nil {
 		return
 	}