The invention discloses a lifting platform for electric power overhaul. The lifting platform comprises a device base. Support arms are hinged to the two sides of the device base. A lifting rack is arranged in the middle of the device base and matched with a set of lifting oil cylinders arranged on the device base. A lifting platform body is arranged on the lifting rack. Side guard bars are arranged at the two sides of the lifting platform body correspondingly. A controller is arranged on one of the side guard bars. The other end of the lifting platform body is hinged to a step plate guard bar through a pin shaft. The lifting platform body is connected with an extension rack through an extending-and-contracting rod and an extending-and-contracting oil cylinder. The lower portion of the extension rack is connected with a movable vehicle through a support pillar. The lifting platform for electric power overhaul can ascend and descend flexibly; the lifting platform body can be extended, the working area of the lifting platform body is expanded, and overhaul personnel can obtain a larger activity space; much convenience is provided for electric power overhaul; and meanwhile, the device base can be in stable contact with the ground without sliding, so that safety is high.