Electromagnetic compatibility test tool for automobile generator

The invention discloses an electromagnetic compatibility test tool for an automobile generator, which comprises a base, a generator fixing bracket, a belt pulley, a belt and a dragging device, wherein the dragging device consists of a pneumatic motor and a pneumatic motor bracket; the pneumatic motor bracket and the generator fixing bracket are arranged on the base; the pneumatic motor is arranged on the pneumatic motor bracket; the generator fixing bracket is used for mounting a generator to be tested; the belt pulley is arranged on a rotating shaft of the pneumatic motor; and the belt pulley is connected with the rotating shaft of the generator to be tested through the belt. When the electromagnetic compatibility test tool is used for an electromagnetic compatibility test of a motor, the phenomenon that the accuracy of the electromagnetic compatibility test of the automobile generator is influenced by electromagnetic interference can be avoided.