Abstract: Truck Performance Detection System (TPDS) using on detecting railway passenger cars is an important support means to ensure the safety of railway passenger cars operation. Based on the analysis of the present situation of TPDS, combined with the application requirements of railway passenger cars safety monitoring, this article elaborated the system technical scheme from system architecture design and the main functional framework design, described the key technologies and the application cases of the system in detail. With the popularization and application of the system, it could improve the railway passenger car security capabilities, meet the application requirements of safety management of railway passenger cars.