Battery replacement method and system for electric vehicle

The invention provides a battery replacement method and system for an electric vehicle. The method comprises the steps that a user side sends a battery replacement reservation request for the electric vehicle to a battery replacement station; the battery swap station sends a battery swap request to the electric vehicle according to the received battery swap reservation request; the electric vehicle outputs a battery replacing process interface according to the battery replacing request, and a high-voltage electricity supplying function of the electric vehicle is forbidden; the battery replacing information of the electric vehicle is obtained and sent to the battery replacing station; the battery swap station performs battery swap operation on a power battery of the electric vehicle according to the battery swap information; and when the battery replacement operation is completed, sending battery replacement completion information to the electric vehicle. Therefore, the method and the system can automatically