The day and night long-distance reconnaissance forensic tester adopts advanced active infrared lighting technology, military grade semiconductor laser lighting technology as auxiliary light source, equipments with batteries, independent wireless video display equipment, and can connect with mobile phone flat panel products. It is suitable for long-distance temporary squatting control. The product has clear imaging. It is suitable for the use of public security departments such as army, frontier defense, public security, security, communications and so on. It is a necessary tool and means for forensics and monitoring under all-black night environment. The products are mainly aimed at 24 hours real-time video surveillance, investigation and forensics in the range of 50-3000 meters.