diff --git a/common/include/tfe_http.h b/common/include/tfe_http.h
index 0a96344..053917e 100644
--- a/common/include/tfe_http.h
+++ b/common/include/tfe_http.h
@@ -202,11 +202,16 @@ typedef void (http_session_data_cb)(const struct tfe_stream * stream,
 typedef void (http_session_end_cb)(const struct tfe_stream * stream,
 	const struct tfe_http_session * session, unsigned int thread_id, void ** pme);
 
+/* Tools functions for standard HTTP header field name */
 struct http_field_name * http_field_name_duplicate(const struct http_field_name * orig);
 int http_field_name_compare(const struct http_field_name * lvalue, const struct http_field_name * rvalue);
 const char * http_field_to_string(const struct http_field_name * field);
 void http_field_destory(struct http_field_name *);
 
+/* Tools functions for standard HTTP method */
+const char * http_std_method_to_string(enum tfe_http_std_method method);
+enum tfe_http_std_method http_std_method_construct(const char * str_method);
+
 static inline const char * tfe_http_field_read(const struct tfe_http_half * half,
 	const struct http_field_name * name)
 {
diff --git a/common/src/tfe_http.cpp b/common/src/tfe_http.cpp
index 5916121..774dfcd 100644
--- a/common/src/tfe_http.cpp
+++ b/common/src/tfe_http.cpp
@@ -43,6 +43,18 @@ static const char * __str_std_header_field_map[] =
 	[TFE_HTTP_ACCEPT_ENCODING] = "Accept-Encoding"
 };
 
+static const char * __str_std_method_map[] =
+{
+#define XX(num, name, string) [TFE_HTTP_##name] = #string,
+		HTTP_METHOD_MAP(XX)
+#undef XX
+};
+
+const char * http_std_method_to_string(enum tfe_http_std_method method)
+{
+	return __str_std_method_map[method];
+}
+
 struct http_field_name * http_field_name_duplicate(const struct http_field_name * orig)
 {
 	struct http_field_name * __duplicated = ALLOC(struct http_field_name, 1);