The utility model discloses an external damage intellectual detection system device is prevented to electric wire netting intelligence, including ultrasonic ranging device, ARM treater, image processor, infrared camera and GPRS communication device, the siren is originally internal at detection device through mounting screw, the inside at the detection device body is fixed to the ultrasonic ranging device, the inside at the detection device body is installed to flash memory and WIFI transmitter, image processor installs on infrared camera, the first singlechip of ultrasonic ranging device electrical property input connection, ARM treater electrical property input connection flash memory, flash memory electrical property input connection WIFI transmitter, WIFI transmitter signal input connection early warning platform. This external damage intellectual detection system device is prevented to electric wire netting intelligence, through being equipped with black anti -corrosion coating on the surface at the detection device body, the erosion that can prevent acid rain increases detection device's life, is difficult to found detection device by the robber at night simultaneously.