At present，the ICV system has found different levels of information safety vulnerabilities.It has aroused the concern of the community.The occurrence of this phenomenon is closely related to the intelligent and network development trend of automobile connotation function and the network connecting development trend of auto extension system and platform.In order to analyze the current situation and risk of ICV information security，the author has established the ICV threat model and made further analysis from the vulnerability of the ICV.He also appraised the information safety of ICVs from the three areas of the equipment，the perception safety assessment，the network link safety assessment and the application safety assessment.Finally，the author also puts forward the three suggestions for ICV information safety precaution.