Portable tree pruning auxiliary device and construction method

The invention discloses a portable tree pruning auxiliary device and a construction method.The portable tree pruning auxiliary device comprises two U-shaped frames, a screw, a first displacement plate and a second displacement plate, the two U-shaped frames are connected together in an inserted mode through the screw, and the screw is sequentially sleeved with the first displacement plate and the second displacement plate; a clamping hoop assembly is rotationally connected between the end plates at the rear end of the first displacement plate, a first supporting column is fixed in the clamping hoop assembly, a lantern ring is arranged on the first supporting column, a through hole is formed in the lantern ring, and a winder is arranged above the second displacement plate. The high-voltage line branch cutting device solves the problem that branches scratch the line when the branches of the high-voltage line are cut outdoors, the burden of workers is relieved, the working efficiency is improved, the constructio