The utility model discloses a hydraulic pressure hoisting device for an electric power cover plate, and the hydraulic pressure hoisting device for the electric power cover plate comprises a pair of n type lifting brackets, the support base is formed at the lower part of the lifting bracket, the device further comprises two hydraulic pressure jacks, which are fixed on the support base, the top end of the piston rod of the hydraulic pressure jack is connected with a support ring, the slide groove extending along the length direction of the straight line is formed at opposite sides of the two straight lines of the n type lifting bracket, the slide block running in the slide groove at two straight lines of the n type lifting bracket is formed at each side of the support ring, the electric power cover plate hydraulic pressure hoisting device further comprises a hanging beam capable of penetrating two support rings, a hanging rope is formed on the hanging beam, a hook is formed at the lower end of the hanging rope, a trundle is formed at the lower part of the support base. The hydraulic pressure hoisting device for electric power cover plate can solve the condition of high labour intensity and low work efficiency for prying, excavating, turning, dragging and dropping heavy cable cover plate with simple tool as steel spade and crowbar for the constructors.