Perimeter guard alarm system to prevent intruders from jumping over the wall, fence into the guard area, mainly composed of a number of products, mainly for intrusion detection and alarm warning function of the equipment。In addition, in order to ensure the convenient use of operators and improve the convenience and effectiveness of the use of products, some alarm peripheral equipment is extended, such as electronic maps, which can be used to accurately locate the location of intruders in the originally set defense area and timely police。