Abstract: The turnout operation and maintenance quality management system consists of a turnout comprehensive monitoring system, a turnout data management system and a turnout maintenance management system. The structure and function of the turnout operation and maintenance quality management system is introduced. The structure and function of the turnout comprehensive monitoring system, the turnout data management system and the turnout maintenance management system are expounded. The system can elevate the level of intelligence, automation and informatization of turnout operation and maintenance. Through expert intelligent diagnosis and big data analysis, rapid fault diagnosis and locating and early warning can be realized. Through integrated monitoring, analysis and closed-loop processing, operation and maintenance efficiency can be significantly improved.