A magnet target comprising a fixing plate, a plurality of shafts arranged in an array, a plurality of connecting rods pivotably provided onto a plate surface of the fixing plate at one end and capable of rotating about corresponding one of the shafts, and a plurality of magnets that are each attached to the other fee end of one connecting rod. The magnets comprise magnets having external S poles and magnets having external N poles, and the magnets having external S poles and magnets having external N poles are arranged alternatively in an array.