The Internet of Vehicles（IoV）facilitates vehicles travel，alleviates traffic pressure，improves users’ driving experience，and provides users with entertainment and other services. Noticeably，autonomous driving，as the core service for the deployment and development of the IoV，can make intelligent decisions such as path planning，velocity planning，and trajectory planning by sensing surrounding data. The network security of autonomous driving is of paramount importance. This report will start with five aspects：intelligent vehicles，communications，service platforms，mobile applications，identity authentication and data，and study the safety threats and safety protection methods faced by autonomous driving emphatically. On this basis，the current situation and development prospects of autonomous driving network security are also summarized and refined.