Vehicle driving range calculation method and device

The invention discloses a vehicle driving range calculation method and device. The method comprises the steps: obtaining the first available electricity quantity according to power state data of a target vehicle; correcting the first available electricity quantity according to the cold start state data of the target vehicle to obtain the second available electricity quantity; and determining first predicted average energy consumption according to the recent driving state data of the target vehicle, and determining a first driving range of the target vehicle according to the first predicted average energy consumption and the second available electric quantity, so as to represent the predicted driving range of the target vehicle by using the first driving range. The available electricity quantity of the vehicle-mounted power supply is corrected through the cold start state data to obtain second available electricity quantity, so that the second available electricity quantity is closer to the real available elec