Abstract: With the rapid development of intelligent connected vehicles(ICVs), the spatio-temporal data generated has become a core element supporting the developement of autonomous driving and the vehicle-road-cloud integration. However, it also faces security risks such as geographic information leakage and data tampering.Focusing on the geographic information security issues of ICVs spatio-temporal data, this article summarizes the various types of spatiotemporal data involved in vehicle-road-cloud integration.Targeting the whole-process data processing activities of ICVs spatio-temporal data including collection, transmission, aggregation,fusion, distribution and application, it designs a data security guarantee mechanism that meets the requirements of geographic information security.It provides support for the safe and compliant use of large-scale and high-quality spatio-temporal data in the industry, and offers suggestions for the development direction of spatio-temporal data security in intelligent connected vehicles.

Key words: intelligent connected vehicles, spatio-temporal data, geographical information security, security guarantee mechanism