This paper summarizes the development status of the electrically heated turnout snow melting system, FAO (Full Automatic Operation) and its subsystem TIAS (Train Integrated Automation System). By comparing the similarities of structure, function and man-machine display interface of turnout snow melting system and FAO system, it is found that it is feasible and necessary to integrate turnout snow melting system into TIAS subsystem, and a new integration solution is proposed.