Abstract: For the problem that it was difficult to apply existing wired communication systems or the wireless ones of coal mine in working face, a communication system of coal mine working face based on wireless Mesh technology was proposed, and structure, design of wireless Mesh base station and function indexes of the system were introduced. The system has high bandwidth, short routing updating time(less than 10 s) and long wireless covering distance(greater than 1 km), and can access industrial Ethernet of coal mine underground, which can realize wireless network covering of working face.