The invention relates to an anode and a plating pen used for thread brush plating and belongs to the technical field of brush plating tools. The brush plating pen comprises a conductive rod and an anode, the front end of the conductive rod is fixed with a bifurcation conductive location frame, and flake anodes are blocked and arranged at interval between two bifurcations of the bifurcation conductive location frame. The flake anodes are arc-shaped which is similar to the thread, and the spacing distance between the flake anodes is matched with the thread pitch. The anode and the plating pen improve the uniformity of the thickness of the brush plating layer greatly, strengthen the antiseptic and wear-resistant capacity of the thread, prolong the service life of the thread and reduce the manufacturing cost of the anode of brush plating and the use cost of canning.