Abstract: In view of the problems and the insufficiency existed in present production environment monitoring systems of underground coal mine, according to company status and the actual demand, using C# language and the advantage of WiFi wireless communication technology and wireless sensor network, a production environment monitoring system is designed, which combines underground equipment orientation, production environment monitoring system with emergency rescuing.The system can not only meet the needs of efficient management in mine, and also realize the real-time display and early warning of every site environment parameter monitored underground coal mine and host computers.It provides strong safeguard for the security of equipment performance, personnel efficient work and life safety.Applications show that the system has stable performance, reliable technology and simple using method.And it can satisfy the practical needs of production monitoring in the current coal mine.

Key words: WiFi, Wireless sensor, Environment monitor, Warning