diff --git a/client/client.cpp b/client/client.cpp
index 0aa04ee..b6c478c 100644
--- a/client/client.cpp
+++ b/client/client.cpp
@@ -123,15 +123,6 @@ void CClient::print_help(bool detail)
     TLOGI("{}", sp);
 }
 
-void CClient::free_buf_manual(CFrameBuffer* buf)
-{
-    if (buf == nullptr) {
-        return;
-    }
-    delete buf->data_;
-    buf->data_ = nullptr;
-}
-
 void CClient::run(const std::string& ip, const std::string& port, const std::string& config_dir)
 {
     fs::path fp(config_dir);
@@ -1099,8 +1090,6 @@ void CClient::handle_frame(CFrameBuffer* buf)
             buf->type_ = TYPE_GET_DIRFILES_DONE;
             msg_info.str = out;
         }
-        delete[] buf->data_;
-        buf->data_ = nullptr;
         serialize(msg_info, &buf->data_, buf->len_);
         std::swap(buf->tid_, buf->fid_);
         if (!send_frame(buf)) {
@@ -1216,10 +1205,15 @@ void CClient::handle_frame(CFrameBuffer* buf)
             TLOGE("{} GetList deserialize failed.", __LINE__);
             break;
         }
-        delete[] buf->data_;
-        buf->data_ = nullptr;
         msg_info.str = variable_and_reverse_files(msg_info.str);
         serialize(msg_info, &buf->data_, buf->len_);
+
+        CMessageInfo tp(buf->fid_);
+        if (!deserialize(buf->data_, buf->len_, tp)) {
+            TLOGE("{} GetList deserialize failed.", __LINE__);
+			break;
+        }
+
         std::swap(buf->tid_, buf->fid_);
         buf->type_ = TYPE_REQUEST_UPDATE_LIST;
         if (!send_frame(buf)) {
@@ -1229,12 +1223,12 @@ void CClient::handle_frame(CFrameBuffer* buf)
         break;
     };
     case TYPE_REQUEST_UPDATE_LIST: {
+        CMessageInfo msg_info(buf->fid_);
         std::map<std::string, std::string> files;
         if (down_ && down_->trans_state_ == TRANS_REDAY) {
             TLOGW("Update Busy......, Ignore {}", buf->fid_);
             buf->type_ = TYPE_BUSY_UPDATE_LIST;
         } else {
-            CMessageInfo msg_info(buf->fid_);
             if (!deserialize(buf->data_, buf->len_, msg_info)) {
                 TLOGE("{} GetList deserialize failed.", __LINE__);
                 break;
@@ -1246,6 +1240,7 @@ void CClient::handle_frame(CFrameBuffer* buf)
                 buf->type_ = TYPE_UNCONFIRM_UPDATE_LIST;
             }
         }
+        serialize(msg_info, &buf->data_, buf->len_);
         std::swap(buf->tid_, buf->fid_);
         if (!send_frame(buf)) {
             TLOGE("Send Failed {}.", __LINE__);
@@ -1360,7 +1355,9 @@ void CClient::send_file_data_th(const char* keys)
         return;
     }
 
-    free_buf_manual(buf.get());
+    delete[] buf->data_;
+    buf->data_ = nullptr;
+
     buf->type_ = TYPE_TRANS_FILE;
     buf->mark_ = 1;
 
@@ -1377,7 +1374,7 @@ void CClient::send_file_data_th(const char* keys)
         cur_send_size = t->file_.gcount();
         msg_info.data.resize(cur_send_size);
         send_size += cur_send_size;
-        serialize(msg_info, &buf->data_, buf->len_);
+        serialize(msg_info, &buf->data_, buf->len_, true);
         if (!send_frame(buf.get())) {
             report_trans_ret(TRANS_FAILED, str_key);
             TLOGE("Stop Trans {} To {} failed.", t->cur_file_, str_key);
diff --git a/client/client.h b/client/client.h
index e50fab2..31f4609 100644
--- a/client/client.h
+++ b/client/client.h
@@ -71,7 +71,6 @@ private:
     std::string read_uuid();
     void get_id();
     void print_help(bool detail);
-    void free_buf_manual(CFrameBuffer* buf);
 
 private:
     void handle_frame(CFrameBuffer* buf);
diff --git a/util/util.cpp b/util/util.cpp
index c493d66..cd11633 100644
--- a/util/util.cpp
+++ b/util/util.cpp
@@ -134,7 +134,7 @@ CFrameBuffer::~CFrameBuffer()
     len_ = 0;
 }
 
-void serialize(CMessageInfo& msg_info, char** out_buf, int& len)
+void serialize(CMessageInfo& msg_info, char** out_buf, int& len, bool reuse_mem)
 {
     auto& info = msg_info;
     info.id = localtou8(info.id);
@@ -149,8 +149,13 @@ void serialize(CMessageInfo& msg_info, char** out_buf, int& len)
     // 调用方负责确保内存够用性（len <= 可用最大空间长度）和内存可用性。
     // 即，如果调用方及高频率调用 serialize, 且每次 len <= 已分配空间就复用内存，完了再释放。
     // 低频率或者 len 不固定时，每次都释放内存，并置 nullptr。
-    if (*out_buf == nullptr) {
-        *out_buf = new char[len];   // 分配内存（调用方负责释放）
+    if (*out_buf) {
+        if (!reuse_mem) {
+            delete[] *out_buf;
+            *out_buf = new char[len];   // 分配内存（调用方负责释放）
+        }
+    } else {
+        *out_buf = new char[len];
     }
 
     char* ptr = *out_buf + kz + 1;
diff --git a/util/util.h b/util/util.h
index ccaab65..9436c52 100644
--- a/util/util.h
+++ b/util/util.h
@@ -53,7 +53,7 @@ struct CMessageInfo {
     std::string data;
 };
 
-void serialize(CMessageInfo& msg_info, char** out_buf, int& len);
+void serialize(CMessageInfo& msg_info, char** out_buf, int& len, bool reuse_mem = false);
 bool deserialize(char* data, int len, CMessageInfo& msg_info);
 std::string u8tolocal(const std::string& str);
 std::string localtou8(const std::string& str);