diff --git a/README.md b/README.md
index bd2ba1d..53f745f 100644
--- a/README.md
+++ b/README.md
@@ -56,16 +56,16 @@ WebClient 软件包遵循 Apache-2.0 许可，详见 LICENSE 文件。
 ```
 RT-Thread online packages
     IoT - internet of things  --->
-		[*] WebClient: A HTTP/HTTPS Client for RT-Thread
-		[ ]   Enable support tls protocol
-		[ ]   Enable webclient GET/POST samples
-		      Version (latest)  --->
+         [*] WebClient: A HTTP/HTTPS Client for RT-Thread
+         [ ]   Enable webclient GET/POST samples
+               Select TLS mode (Not support)  --->
+               Version (latest)  --->
 ```
 
-**Enable support tls protocol** ：开启 HTTPS 支持；
-
 **Enable webclient GET/POST samples** ：添加示例代码；
 
+**Select TLS mode** ：配置开启 HTTPS 支持，选择支持的模式；
+
 **Version** ：配置软件包版本。
 
 配置完成后让 RT-Thread 的包管理器自动更新，或者使用 pkgs --update 命令更新包到 BSP 中。
diff --git a/docs/user-guide.md b/docs/user-guide.md
index 11efbb1..afa3419 100644
--- a/docs/user-guide.md
+++ b/docs/user-guide.md
@@ -14,15 +14,15 @@
 RT-Thread online packages
     IoT - internet of things  --->
 		[*] WebClient: A HTTP/HTTPS Client for RT-Thread
-		[ ]   Enable support tls protocol
 		[ ]   Enable webclient GET/POST samples
+		      Select TLS mode (Not support)  --->
 		      Version (latest)  --->
 ```
 
-**Enable support tls protocol** ：开启对 HTTPS 支持；
-
 **Enable webclient GET/POST samples** ：添加示例代码；
 
+**Select TLS mode** ：配置开启 HTTPS 支持，选择支持的模式；
+
 **Version** ：配置软件包版本号。
 
 选择合适的配置项后，使用 `pkgs --update` 命令下载软件包并更新用户配置。
@@ -57,8 +57,9 @@ struct webclient_session
 
     int content_length;                 //当前接收数据长度（非 chunk 模式）
     size_t content_remainder;           //当前剩余接收数据长度
-
-#ifdef WEBCLIENT_USING_TLS
+	
+    rt_bool_t is_tls;                   //当前连接是否是 HTTPS 连接
+#ifdef WEBCLIENT_USING_MBED_TLS
     MbedTLSSession *tls_session;        // HTTPS 协议相关会话结构体
 #endif
 };
diff --git a/inc/webclient.h b/inc/webclient.h
index 91b0047..e08b739 100644
--- a/inc/webclient.h
+++ b/inc/webclient.h
@@ -19,7 +19,7 @@
 
 #include <rtthread.h>
 
-#ifdef WEBCLIENT_USING_TLS
+#if defined(WEBCLIENT_USING_MBED_TLS) || defined(WEBCLIENT_USING_SAL_TLS)
 #include <tls_client.h>
 #endif
 
@@ -96,7 +96,8 @@ struct webclient_session
     int content_length;
     size_t content_remainder;           /* remainder of content length */
 
-#ifdef WEBCLIENT_USING_TLS
+    rt_bool_t is_tls;                   /* HTTPS connect */
+#ifdef WEBCLIENT_USING_MBED_TLS
     MbedTLSSession *tls_session;        /* mbedtls connect session */
 #endif
 };
diff --git a/src/webclient.c b/src/webclient.c
index 496e507..9ca2a17 100644
--- a/src/webclient.c
+++ b/src/webclient.c
@@ -45,8 +45,8 @@ extern long int strtol(const char *nptr, char **endptr, int base);
 
 static int webclient_send(struct webclient_session* session, const unsigned char *buffer, size_t len, int flag)
 {
-#ifdef WEBCLIENT_USING_TLS
-    if(session->tls_session)
+#ifdef WEBCLIENT_USING_MBED_TLS
+    if (session->tls_session)
     {
         return mbedtls_client_write(session->tls_session, buffer, len);
     }
@@ -57,8 +57,8 @@ static int webclient_send(struct webclient_session* session, const unsigned char
 
 static int webclient_recv(struct webclient_session* session, unsigned char *buffer, size_t len, int flag)
 {
-#ifdef WEBCLIENT_USING_TLS
-    if(session->tls_session)
+#ifdef WEBCLIENT_USING_MBED_TLS
+    if (session->tls_session)
     {
         return mbedtls_client_read(session->tls_session, buffer, len);
     }
@@ -79,9 +79,11 @@ static int webclient_read_line(struct webclient_session *session, char *buffer,
     while (count < size)
     {
         rc = webclient_recv(session, (unsigned char *) &ch, 1, 0);
-#ifdef WEBCLIENT_USING_TLS
-        if(session->tls_session && rc == MBEDTLS_ERR_SSL_WANT_READ)
+#if defined(WEBCLIENT_USING_MBED_TLS) || defined(WEBCLIENT_USING_SAL_TLS)
+        if (session->is_tls && (rc == MBEDTLS_ERR_SSL_WANT_READ || rc == MBEDTLS_ERR_SSL_WANT_WRITE))
+        {
             continue;
+        }    
 #endif 
         if (rc <= 0)
             return rc;
@@ -224,9 +226,11 @@ static int webclient_resolve_address(struct webclient_session *session, struct a
         host_addr_new[host_addr_len] = '\0';
         session->host = host_addr_new;
         
-#ifdef WEBCLIENT_USING_TLS
-        if(session->tls_session)
+#ifdef WEBCLIENT_USING_MBED_TLS
+        if (session->tls_session)
+        {
             session->tls_session->host = web_strdup(host_addr_new);
+        }     
 #endif
     }
 
@@ -239,8 +243,8 @@ static int webclient_resolve_address(struct webclient_session *session, struct a
 
         rt_memset(&hint, 0, sizeof(hint));
         
-#ifdef WEBCLIENT_USING_TLS
-        if(session->tls_session)
+#ifdef WEBCLIENT_USING_MBED_TLS
+        if (session->tls_session)
         {
             session->tls_session->port = web_strdup(port_str);
             ret = getaddrinfo(session->tls_session->host, port_str, &hint, res);
@@ -282,7 +286,7 @@ __exit:
     return rc;
 }
 
-#ifdef WEBCLIENT_USING_TLS
+#ifdef WEBCLIENT_USING_MBED_TLS
 /**
  * create and initialize https session.
  *
@@ -351,12 +355,15 @@ static int webclient_connect(struct webclient_session *session, const char *URI)
 
     if (strncmp(URI, "https://", 8) == 0)
     {
-#ifdef WEBCLIENT_USING_TLS
+#if defined(WEBCLIENT_USING_SAL_TLS)
+        session->is_tls = RT_TRUE;
+#elif defined(WEBCLIENT_USING_MBED_TLS)
         if(webclient_open_tls(session, URI) < 0)
         {
             LOG_E("connect failed, https client open URI(%s) failed!", URI);
             return -WEBCLIENT_ERROR;
-        }
+        } 
+        session->is_tls = RT_TRUE;
 #else
         LOG_E("not support https connect, please enable webclient https configure!");
         rc = -WEBCLIENT_ERROR;
@@ -390,7 +397,7 @@ static int webclient_connect(struct webclient_session *session, const char *URI)
         goto __exit;
     }
 
-#ifdef WEBCLIENT_USING_TLS
+#ifdef WEBCLIENT_USING_MBED_TLS
     if (session->tls_session)
     {
         int tls_ret = 0;
@@ -424,7 +431,19 @@ static int webclient_connect(struct webclient_session *session, const char *URI)
 #endif
 
     {
+#ifdef WEBCLIENT_USING_SAL_TLS
+        if (session->is_tls)
+        {
+            socket_handle = socket(res->ai_family, SOCK_STREAM, PROTOCOL_TLS_MBED);
+        }
+        else
+        {
+            socket_handle = socket(res->ai_family, SOCK_STREAM, IPPROTO_TCP);
+        }
+#else
         socket_handle = socket(res->ai_family, SOCK_STREAM, IPPROTO_TCP);
+#endif
+
         if (socket_handle < 0)
         {
             LOG_E("connect failed, create socket(%d) error.", socket_handle);
@@ -1181,9 +1200,13 @@ int webclient_read(struct webclient_session *session, unsigned char *buffer, siz
         bytes_read = webclient_recv(session, buffer + total_read, left, 0);
         if (bytes_read <= 0)
         {
-#ifdef WEBCLIENT_USING_TLS
-            if(session->tls_session && bytes_read == MBEDTLS_ERR_SSL_WANT_READ)
+#if defined(WEBCLIENT_USING_SAL_TLS) || defined(WEBCLIENT_USING_MBED_TLS)
+            if(session->is_tls && 
+                (bytes_read == MBEDTLS_ERR_SSL_WANT_READ || bytes_read == MBEDTLS_ERR_SSL_WANT_WRITE))
+            {
                 continue;
+            }
+                
 #endif  
             LOG_E("receive data error(%d).", bytes_read);
 
@@ -1256,9 +1279,12 @@ int webclient_write(struct webclient_session *session, const unsigned char *buff
         bytes_write = webclient_send(session, buffer + total_write, left, 0);
         if (bytes_write <= 0)
         {
-#ifdef WEBCLIENT_USING_TLS
-            if(session->tls_session && bytes_write == MBEDTLS_ERR_SSL_WANT_WRITE)
+#if defined(WEBCLIENT_USING_SAL_TLS) || defined(WEBCLIENT_USING_MBED_TLS)
+            if(session->is_tls && 
+                (bytes_write == MBEDTLS_ERR_SSL_WANT_READ || bytes_write == MBEDTLS_ERR_SSL_WANT_WRITE))
+            {
                 continue;
+            }
 #endif
             if (errno == EWOULDBLOCK || errno == EAGAIN)
             {
@@ -1303,7 +1329,7 @@ int webclient_close(struct webclient_session *session)
 {
     RT_ASSERT(session);
     
-#ifdef WEBCLIENT_USING_TLS
+#ifdef WEBCLIENT_USING_MBED_TLS
     if (session->tls_session)
     {
         mbedtls_client_close(session->tls_session);