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Based on wireless sensor networks (WSNs), tungsten mine environment monitoring system used of ZigBee was designed. Sensor nodes were arranged under tungsten mine flexibly. It transferred various safety indicators within the mine to the gateway node by the cluster head nodes directly or indirectly, then via transmission network uploaded the data to the ground monitoring center by the gateway node. The system took ATmega128L low-power single-chip as microprocessor module. Respectively it made use of SHT11, KE-25 and T6004 sensors to complete the detection of temperature, humidity, Oxygen (O2) concentration and Carbon dioxide (CO2) concentration. And it displayed the test data by using LED digital tube at real-time. Furthermore, it also used a buzzer as sound component to complete alarming and CC2420 wireless transceiver chip as the core of the communication module. All nodes powered by two AA batteries.