The invention belongs to the technical field of manufacturing of printed circuit boards, and provides a processing method for a printed-circuit connector of a PCB of a high-speed photoelectric coupling module. The processing methodcomprises the following steps: preparation of the PCB of the photoelectric coupling module, preparation of an inner layer, lamination, edge milling, drilling, electroplating, preparation of an outer-layer circuit, AOI scanning, preparation of a wet film circuit, preparation of a thick gold dry film, nickel and gold plating, film stripping, film pasting, exposure, alkaline etching, AOI scanning, resistance welding, character preparation, surface treatment, forming, electric testing and finished product inspection. According to the processing method, a lead is etched after the lead is internally drawn and electroplated with nickel and gold, so the process technology of coating the four sides of the golden finger part of the PCB of the photoelectric coupling module with nickel and gold is realized, the requirements of products on MFG mixed gas testing and salt spray testing are met, and product quality is improved.