This topic is the purpose of presenting the design of a mine safety monitoring system, realize the environmental monitoring and personnel downhole positioning function. Based on the comprehensive monitoring system at home and abroad, mine coal mine first discusses the current situation of the development of the safety monitoring system, comparison of the remote monitoring and control system used for communications technology, this system design choice a more superior communication mode, then briefly introduces ZigBee wireless sensor technology, analyzes the comprehensive monitoring system for coal mine, this paper puts forward a kind of ZigBee technology based on the comprehensive monitoring system solutions mine, the paper describes the overall structure of the system and the system structure, the design of based on ZigBee wireless network nodes and AD7705 chips based on the data acquisition system.絕對不是機器,