Preparation method of preformed soldering lugs

The invention provides a preparation method of preformed soldering lugs. The preparation which comprises the following steps that according to a structural design typesetting drawing of pre-machinedpreformed soldering lugs, the typesetting drawing is provided with a cutting contour, wherein the cutting contour is the same as that of at least one kind of a plurality of pre-formed soldering lugs which are uniformly and closely arranged; the typesetting drawing is input into laser equipment, wherein the laser equipment generates a moving track according to the cutting contour; the laser equipment cuts a base material according to the moving track to obtain the plurality of preformed soldering lugs; surface activation cleaning treatment is carried out on the preformed soldering lugs; and dehydration treatment is carried out on the preformed soldering lugs subjected to surface activation cleaning treatment. According to the preparation method of the preformed soldering lugs, the production cost is reduced, and the