The invention discloses a vehicle battery remaining capacity monitoring method, and belongs to the field of battery monitoring. According to the method, a battery group charge-discharge process is controlled with a real-time current accumulation method, real-time temperature correction is carried out; errors of remaining capacity are reduced, accuracy of the remaining capacity is improved, a more accurate battery charge state can be obtained, and meanwhile a judge method of battery aging is provided, so that an operator can visually and accurately know the state of a battery, and great convenience is brought to a driver.