diff --git a/include/client/taos.h b/include/client/taos.h
index edb1552b811a2ff4b8c78c19523cc6f2ad82ba74..6fa30737e71e8f40cee817386ad4d2c26661777f 100644
--- a/include/client/taos.h
+++ b/include/client/taos.h
@@ -172,10 +172,6 @@ DLL_EXPORT int taos_load_table_info(TAOS *taos, const char* tableNameList);
 
 DLL_EXPORT int taos_insert_lines(TAOS* taos, char* lines[], int numLines);
 
-DLL_EXPORT int taos_insert_telnet_lines(TAOS* taos, char* lines[], int numLines);
-
-DLL_EXPORT int taos_insert_json_payload(TAOS* taos, char* payload);
-
 #ifdef __cplusplus
 }
 #endif