The invention provides a lifting method for a radiator electrode of a DC converter valve. The interior of the electrode to be lifted is tapped through a screw tap, a special screw is screwed tight through a rotating lever in the tapped electrode to be lifted, and then the electrode can be lifted. The lifting procedures are simplified; in addition, lifting equipment is simple and convenient and easy to operate. In this way, the process is simple, the lifting speed is high, and quality is high. Moreover, the number of invested equipment is small, and the cost is low; meanwhile, a radiator body is protected.