Abstract: Based on the wireless gas patrol technology, the design concept and scheme of gas inspection and management system for coal mine is introduced. The wireless gas patrol technology combines TDLAS laser gas detection technology, wireless self-organizing network multi-hop technology and accurate positioning technology, and the wireless gas inspection and management system is composed of the software of ground central station, ground/underground ring network switch and wireless multi-function sub-station, wireless positioning base station and gas patrol instrument. The system has obvious advantages in terms of real-time, accuracy and reliability, in particular, the special design is used for the route monitoring, inspection time, emergency guidance and gas concentration detection of inspection personnel.