Abstract: In order to monitor environmental status of coal mine effectively and prevent the geological disasters，aiming at the main problems of high layout and maintenance cost，complex wiring，limited transmission distance and energy in current coal mine environmental monitoring system，a new type of coal mine remote monitoring system based on ZigBee wireless sensor network and GPRS is designed.The CC2530 radio frequency chip，digital temperature and humidity sensor SHT10,digital air pressure sensor GY-63-03 and WG-8010 GPRS DTU module are adopted to develop the wireless sensor network with mesh topology based on Z_Stack protocol，so the hardware and software of sensor nodes of the monitoring system are designed，and the functions of remote acquisition,transmission and processing of temperature，humidity and air pressure data are realized.The C/S structure for the TCP/IP protocol socket communication mechanism is used by the PC monitoring system，and it is developed by adopting the C# language in Visual Studio 2010.The monitoring data can be displayed and queried in real-time by calling SQL database.The experimental results show that the monitoring system is reliable in transmission，high real-time performance，flexible in networking.Besides that，the cost of coal mine environment monitoring can be reduced greatly，therefore，the monitoring system has some practical value.

Key words: ZigBee, GPRS, Wireless sensor networks, Coal mine environment monitoring, Internet of things