RFID Nail tag for trees is a low-frequency electrical tag, which is widely used in the areas of the non-metallic products management, security inspection, packaging of army goods, marking of the bags and the vehicle. The installing method is putting the nail tag in the goods after drilling a hole in the goods surface. The diameter of the hole is suggested to be smaller than 5*33mm, and should be knocked in by rubber hammer. It can be used in the non-metallic products like cement, prefabricated product, plastics and wood.