Maintenance car convenient for dismounting circuit breaker

The maintenance car comprises a car body, a first supporting plate and a second supporting plate are arranged on the car body, and a fixing plate used for fixing a circuit breaker grabbing manipulator is movably arranged at one end of each supporting plate. The linear module is used for driving the circuit breaker grabbing mechanical arm to move in the width direction of the vehicle body, the connecting plate is connected with the linear module, the lifting mechanism is vertically arranged on the connecting plate, and the upper end of the lifting mechanism is connected with the corresponding supporting plate. And a positioning mechanism is arranged at a position, corresponding to the lower part of the circuit breaker grabbing manipulator, on the vehicle body. According to the utility model, the positioning device, the circuit breaker grabbing manipulator, the linear module and the lifting mechanism are arranged, so that the circuit breaker can be conveniently positioned and fixed in the front and back directi