Aiming at the problems of current locomotive operation information decentralization and independence, different information standards of the same kind, various analysis software, independent analysis posts, backward audio and video information storage and analysis methods and low analysis efficiency, the design scheme of integrated linkage analysis system was put forward, which integrated all kinds of monitoring data and carried out standardized processing; A comprehensive analysis platform was established, which integrated LKJ, audio and video, TCMS, 6A monitoring data and other data. The implementation of the system improved the automation of audio and video dump, promoted the accurate positioning of illegal items, and canceled the special post of audio and video dump. At present, the system has been widely applied in Chongqing locomotive depot, and the effect was remarkable.