The invention discloses a closing coil overhaul apparatus of an electromagnetic mechanism. The closing coil overhaul apparatus comprises a jack and universal wheels; the jack consists of a bracket, athreaded rod and a hand-rocking handle; the bracket comprises four supporting rods which are connected end to end, wherein the connecting positions are hinged and fixed through a first hinged column,a second hinged column, a third hinged column and a fourth hinged column respectively; one end of the threaded rod is connected with the hand-rocking handle while the other end passes through the first hinged column and then is connected with the third hinged column; an upper connecting fixed sheet is arranged in the fixed position of the second hinged column; a lower connecting fixed sheet is arranged in the fixed position of the fourth hinged column; a fixed frame is welded on the upper connecting fixed sheet; a connecting plate is welded at the lower end of the lower connecting fixed sheet;and the universal wheels are arranged on the connecting plate. By virtue of the closing coil overhaul apparatus, the working apparatus of the closing coil overhaul apparatus of the electromagnetic mechanism is greatly improved, and in addition, the electromagnetic mechanism is relatively low in manufacturing cost.