A reservation and exhibition environment monitoring system for special necessities of ethnic minorities based on the ZigBee net is developed. The system is designed to collect and transmit the environment information in real time; and, whenever an index goes above the standard line, the monitor center will send a demand to switch on a fan on the terminal node to realize the reversion control, and send warning messages by GSM. Users can check and control the state of any node in the net by PCs, embedded handsets or mobiles. The system is stable, low-cost, and with a wide adaption possibility and good portability.