The invention discloses a self-adaptive cruise control system for a vehicle. The self-adaptive cruise control system for the vehicle comprises a vehicle front radar and a vehicle front camera, a vehicle rear radar, a vehicle side radar, a cruise control database, a trip computer module, a data analysis module, a strategy updating module and a strategy updating interface module, wherein the vehiclefront radar and the vehicle front camera are used for detecting an object in front of the vehicle; the vehicle rear radar is used for detecting an object behind the vehicle; the vehicle side radar isused for detecting objects on sides of the vehicle; the cruise control database is used for storing cruise control strategies; the trip computer module is used for collecting real-time running statedata of the vehicle and controlling the running state of the vehicle according to the cruise control strategies; the data analysis module is used for analyzing data collected by the vehicle front radar, the vehicle rear radar, the vehicle side radar, the vehicle front camera and the trip computer module; the strategy updating module is used for updating the cruise control strategies stored in thecruise control database; and the strategy updating interface module is used for providing a cruise control strategy updating interface for the strategy updating module. According to the self-adaptivecruise control system for the vehicle, the shortcomings in the prior art can be avoided, the data processing amount can be reduced and the degrees of dependence on data collecting amount and collecting accuracy are reduced.