The invention discloses a processing method of a multipath electrostatic discharge (ESD) protector. The processing method of the multipath ESD protector comprises that N through holes are formed in a first base material which comprises a first conducting layer, a second conducting layer and a first insulating layer located between the first conducting layer and the second conducting layer; the N through holes are filled with conducting materials; pattern processing is carried out on the second conducting layer; pattern processing is carried out on the first conducting layer and/or blind grooves penetrating through the first conducting layer to the first insulating layer are machined on the first conducting layer, and a first resin layer is arranged on the first conducting layer; a protective layer is arranged on the first resin layer, N/2 blind holes penetrating from the protective layer to the first insulating layer are formed in the protective layer; the N/2 blind holes are filled with slurry; the protective layer is peeled from the first resin layer; and a protective upper body is arranged on the first resin layer. By means of the processing method, manufacturing cost of the ESD protector can be lowered, and safety of the ESD protector can be improved.