The invention discloses a high-current pole component with error-proof function for a battery pack, which includes a fastening cap, a protective cover, a limit piece, a pole, a flange seat, a mounting ring, a conductive nut, a conductive washer, and a countersunk head Screw one, countersunk screw two. In general, the positive and negative poles of many battery packs use studs to realize external output. This method is simple, but it is prone to reverse short circuit phenomenon, causing damage to the battery pack or equipment, and posing a safety hazard. Therefore, measures need to be taken to prevent pole connection errors. There is a disc on the pole designed by the present invention, and the disc protrudes from both sides of the boss, and the stud is protruded from the boss, and the external conductive terminal is fixed to the plane of the boss through the nut to realize the plane conduction function, which is different from the ordinary pole. Compared with the threaded conductive method of the post, it has a smaller contact resistance, so it has the ability to over-current.