Mine electric locomotives is the level of mine roadway transport is an important means of transport over long distances, in coal transport and auxiliary transport plays an important role. It is low cost, transport capacity, convenient operation, has the advantages of non-reserve system. Mine electric locomotives by the mechanical and electrical parts. Mechanical parts including frame, wheel, bearing, spring Bay, brakes, sanding device, connection device, and so on. Electrical parts including: DC series motor, controller, resistor box automatically switches, pantograph, air or explosion-proof plug, battery (battery electric vehicles).