The utility model relates to a power supply box, specifically relates to a movable type multifunctional maintenance power supply box, and belongs to the field of distribution equipment. The movable type multifunctional maintenance power supply box comprises a box body (2); the bottom of the box body (2) is provided with pulleys (4); the front end and the rear end of the box body (2) are respectively provided with a wire-inlet cabinet door (7) and a wire-outlet cabinet door (9); the inner part of the box body (2), close to the wire-inlet cabinet door (7), is provided with a wire-inlet panel (5); the inner part of the box body (2), close to the wire-outlet cabinet door (9), is provided with a wire-outlet panel (8); and the wire-inlet cabinet door (7) and the wire-outlet cabinet door (9) are both provided with grounding terminals (6). According to the power supply box, the operation is still safe in severe weathers such as rainy or snowy days, the wire-inlet cabinet door and the wire-outlet cabinet door can be closed after the wiring of a power supply is accomplished, and dust and rainwater are prevented from permeating into the box; meanwhile, when the wire-inlet cabinet door and the wire-outlet cabinet door are opened and closed during the maintenance of the power supply box, any bare conductors and conductive terminals cannot be seen, security and reliability are guaranteed, and the structure is simple and reasonable.