The invention discloses an electric vehicle with a vacuum pump control system. The electric vehicle with the vacuum pump control system comprises a vehicle controller, a vacuum pump, a vacuum pressure sensor, an ambient pressure sensor, a speed sensor and a braking sensor. A controlling method for the electric vehicle with the vacuum pump control system comprises the following steps that step A, the vehicle controller controls the motor output torque in the recycling and braking process according to speed and braking pedal switch signals; step B, signals are detected according to the ambient atmospheric pressure; step C, the relative pressure range of braking is determined, the absolute pressure range in a vacuum system is calculated, and whether starting the vacuum pump body is needed or not is determined; step D, opening degree signals and the changing rate of the opening degree of the braking pedal are collected to determine whether gas leaking is existed in the prior vacuum system or not; and step E, if gas leaking in the vacuum system is determined, the vehicle controller brakes enforcedly to reduce the speed until the vehicle is stopped, and an emergency light is turned on. According to the electric vehicle with the vacuum pump control system, the basic performance of the vacuum pump can be improved, running braking stability and reliability of the electric vehicle can be improved, running safety of the vehicle is ensured, applicability is high, and practicability is good.