In recent years，the rapid development and popularization of China’s new energy vehicles have driven the green transformation and innovation of the automotive industry. However，it has also brought about safety risks. In response to the failure to deal with the hidden dangers of new energy vehicles in time，Traffic Management Research Institute of the Ministry of Public Security has conducted research on the cross-departmental cross-network integration of new energy vehicle monitoring data；the evolution mechanism of new energy vehicle safety hazards；and key technologies such as the precise tracking and investigation of new energy vehicle safety hazards. The Research Institute has built a new energy vehicle monitoring information sharing application platform，developed a new energy vehicle road operation risk full-process research and judgment system，a new energy vehicle road safety hazard precise control system，and achieved the deep integration of new energy vehicle monitoring resources between the Ministry of Industry and Information Technology and the Ministry of Public Security. Big data，artificial intelligence and other technologies are applied to accurately control new energy vehicles for the safety hazards and accident risks. The research results have been demonstrated and applied in Wuxi and Jiaxing，which achieved phased results.