Processing technology of plug-in PCB

The invention relates to the technical field of PCBs, in particular to a processing technology of a plug-in PCB. The PCB is provided with a plug-in part. The processing technology comprises the following steps of: 1, cutting a material to form the shape of the end part of a copper wire on the plug-in part; 2, pasting a photosensitive film on the board surface, performing exposure through using a film, and developing to form a circuit pattern; 3, electroplating a circuit pattern on the board surface; 4, plating thin gold on the whole board; 5, pasting another photosensitive film on the surfaceof the PCB, exposing the region outside the plugging part of the PCB through using a film, and developing the plugging part of the PCB; 6, plating thick gold on the surface of the plugging part; 7, removing the photosensitive film on the board surface; and 8, etching the board surface to remove the non-circuit copper layer. According to the processing technology of the invention, the surface and the end part of the copper