The invention discloses a temporary drainage tool for a live-line work, and the tool comprises a drainage tool. The drainage tool consists of a wire clamping ring, a crescent-moon-shaped pusher, a screw rod, a screw rod handle and a copper strip. The beneficial effects of the invention are that the drainage tool employs a buckle structure, locks the clamping ring through a buckle after a wire is placed in the clamping ring, thereby improving the connection efficiency, reducing the risk of high-altitude falling, and improving the safety of high-altitude operation; the diameter of the adopted clamping ring is greater than the wire diameters of all wires in use at present, and the clamping ring is used in cooperation with the crescent pusher, so the clamping ring can be suitable for the wiresof all wire diameters, thereby reducing the time and labor cost for workers to prepare different tools for different wires. The crescent pusher is in a radian design, so that the contact area betweenthe crescent pusher and a wire after the wire is clamped by the upper ring of the wire clamping ring can be increased, thereby reducing the contact resistance and electric energy loss; a screw rod handle is adopted to rotate the screw rod, so that no additional tool is needed, the labor intensity of operators is greatly reduced, and the operation efficiency is improved.