diff --git a/inc/webclient.h b/inc/webclient.h
index 7600a55..84205d3 100644
--- a/inc/webclient.h
+++ b/inc/webclient.h
@@ -152,6 +152,7 @@ const char *webclient_header_fields_get(struct webclient_session *session, const
 int webclient_response(struct webclient_session *session, unsigned char **response);
 int webclient_request(const char *URI, const char *header, const char *post_data, unsigned char **response);
 int webclient_resp_status_get(struct webclient_session *session);
+int webclient_content_length_get(struct webclient_session *session);
 
 #ifdef RT_USING_DFS
 /* file related operations */
diff --git a/samples/webclient_get_sample.c b/samples/webclient_get_sample.c
index 0184d14..c6008ad 100644
--- a/samples/webclient_get_sample.c
+++ b/samples/webclient_get_sample.c
@@ -89,11 +89,7 @@ int webclient_get_test(int argc, char **argv)
 
     rt_kprintf("webclient GET request response data :\n");
 
-    if(webclient_header_fields_get(session, "Content-Length"))
-    {
-        content_length = atoi(webclient_header_fields_get(session, "Content-Length"));
-    }
-
+    content_length = webclient_content_length_get(session);
     if (content_length < 0)
     {
         rt_kprintf("webclient GET request type is chunked.\n");
diff --git a/src/webclient.c b/src/webclient.c
index 349d873..83e47e8 100644
--- a/src/webclient.c
+++ b/src/webclient.c
@@ -553,6 +553,20 @@ int webclient_resp_status_get(struct webclient_session *session)
     return session->resp_status;
 }
 
+/**
+ * get http response data content length.
+ *
+ * @param session webclient session
+ *
+ * @return response status code
+ */
+int webclient_content_length_get(struct webclient_session *session)
+{
+    RT_ASSERT(session);
+
+    return session->content_length;
+}
+
 static int webclient_send_header(struct webclient_session *session, int method)
 {
     int rc = WEBCLIENT_OK;