At present, in various organs and enterprises of the society, many enterprises and units need to use vehicles. These vehicles can provide certain convenient services for the daily operation of enterprises and the travel of residents. However, in recent years, the information security leakage of the urban car dispatching system is very common, which also leads to the leakage of people's privacy, which even reduces the efficiency of vehicle use. At the same time, there are also a series of problems in the travel process of public vehicles. We improve the security of vehicle owner information in the urban vehicle dispatching system, and at the same time ensure that vehicles can be fully utilized. This paper also puts forward corresponding solutions for the research on the vehicle owner information security and confidentiality system in the urban vehicle dispatching system. After analyzing the current situation of vehicle scheduling and vehicle management in the city, the countermeasures to solve the vehicle owner information security and confidentiality are found.