Vehicle mileage correction method and system

The present invention provides a method for correcting vehicle driving range, comprising the steps of: acquiring a current average energy consumption and the remaining battery power of the vehicle within a predetermined time; initial driving the vehicle is calculated in accordance with the remaining battery power and the average power consumption within a predetermined time mileage estimate; use mode determines whether to change the vehicle; the initial calculation of the correction value of energy consumption and the estimated mileage of the vehicle if the vehicle's usage pattern changes, the change signal corresponding to the mode change signal according to the use, usage patterns member mileage estimated value. The method of the invention can be corrected in real time and display accurate estimate of the driving range, improve the user experience. The present invention also provides a vehicle mileage correction system.