Anti-corrosion processing method of threaded structure connecting piece

The invention provides an anti-corrosion machining method for a threaded structure connecting piece, and belongs to the technical field of anti-corrosion machining of threaded structure connecting pieces. Firstly, external threads are pre-machined on the surface of a blank of the threaded structure connecting piece, and then a cladding layer with a certain thickness is formed on the surface of the pre-machined external threads through laser cladding equipment; and the cladding layer forms an anti-corrosion layer. The external threads are pre-machined on the surface of the blank of the threaded structure connecting piece, the pre-machined external threads are arc threads, the thickness allowance of the cladding layer does not need to be reserved in advance, then the surface of the threaded structure connecting piece is cladded with a layer of metal material powder different from a threaded base body, namely, the cladding layer, and the cladding layer is utilized to form an anti-corrosion layer; and meanwhile,