diff --git a/test_client/async_client.hpp b/test_client/async_client.hpp
index 2a7b1c4..3b55aca 100644
--- a/test_client/async_client.hpp
+++ b/test_client/async_client.hpp
@@ -9,12 +9,18 @@ using namespace rest_rpc::rpc_service;
 class async_client : private boost::noncopyable {
 public:
 	async_client(const std::string& host, unsigned short port) : socket_(ios_), work_(ios_), 
-		connect_timer_(ios_), host_(host), port_(port) {
+		deadline_(ios_), host_(host), port_(port) {
+		thd_ = std::make_shared<std::thread>([this] {
+			ios_.run();
+		});
 	}
 
-	void set_timeout(int milliseconds) {
-		assert(milliseconds > 0);
-		timeout_ = milliseconds;
+	~async_client() {
+		stop();
+	}
+
+	void set_connect_timeout(size_t seconds) {
+		timeout_ = seconds;
 	}
 
 	void set_reconnect_count(int reconnect_count) {
@@ -41,23 +47,28 @@ public:
 			}
 			else {
 				has_connected_ = true;
+				deadline_.cancel();
 				std::cout << "connect "<< host_<<" "<<port_ << std::endl;
 			}
 		});
 	}
 
-	void run() {
-		ios_.run();
-	}
-
 	bool has_connected() const {
 		return has_connected_;
 	}
 
+	void stop() {
+		if (thd_ != nullptr) {
+			ios_.stop();
+			thd_->join();
+			thd_ = nullptr;
+		}
+	}
+
 private:
 	void reset_connect_timer() {
-		connect_timer_.expires_from_now(boost::posix_time::milliseconds(timeout_));
-		connect_timer_.async_wait([this](const boost::system::error_code& ec) {
+		deadline_.expires_from_now(boost::posix_time::seconds((long)timeout_));
+		deadline_.async_wait([this](const boost::system::error_code& ec) {
 			if (!ec) {
 				socket_.close();
 			}
@@ -68,11 +79,12 @@ private:
 	boost::asio::io_service ios_;
 	tcp::socket socket_;
 	boost::asio::io_service::work work_;
+	std::shared_ptr<std::thread> thd_ = nullptr;
 
 	std::string host_;
 	unsigned short port_;
-	int timeout_=1000;//ms
+	int timeout_=1;//s
 	int reconnect_cnt_ = -1;
 
-	boost::asio::deadline_timer connect_timer_;
+	boost::asio::deadline_timer deadline_;
 };
\ No newline at end of file
diff --git a/test_client/main.cpp b/test_client/main.cpp
index 8a4c74a..092974a 100644
--- a/test_client/main.cpp
+++ b/test_client/main.cpp
@@ -1,5 +1,6 @@
 #include <iostream>
 #include "test_client.hpp"
+#include "async_client.hpp"
 #include "../codec.h"
 
 using namespace rest_rpc;
@@ -61,7 +62,7 @@ void test_get_person_name() {
 		test_client client(io_service);
 		client.connect("127.0.0.1", "9000");
 
-		auto result = client.call<std::string>("get_person_name", person{1, "tom", 20});
+		auto result = client.call<std::string>("get_person_name", person{ 1, "tom", 20 });
 		std::cout << result << std::endl;
 	}
 	catch (const std::exception& e) {
@@ -83,7 +84,16 @@ void test_get_person() {
 	}
 }
 
+void test_async_client() {
+	async_client client("127.0.0.1", 9000);
+	client.connect();
+
+	std::string str;
+	std::cin >> str;
+}
+
 int main() {
+	test_async_client();
 	test_get_person();
 	test_get_person_name();
 	test_hello();
diff --git a/test_client/test_client.vcxproj b/test_client/test_client.vcxproj
index d355e2c..9255cf1 100644
--- a/test_client/test_client.vcxproj
+++ b/test_client/test_client.vcxproj
@@ -120,6 +120,7 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClInclude Include="async_client.hpp" />
     <ClInclude Include="test_client.hpp" />
   </ItemGroup>
   <ItemGroup>
diff --git a/test_client/test_client.vcxproj.filters b/test_client/test_client.vcxproj.filters
index 8832584..afcbb63 100644
--- a/test_client/test_client.vcxproj.filters
+++ b/test_client/test_client.vcxproj.filters
@@ -18,6 +18,9 @@
     <ClInclude Include="test_client.hpp">
       <Filter>头文件</Filter>
     </ClInclude>
+    <ClInclude Include="async_client.hpp">
+      <Filter>头文件</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="main.cpp">