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Zigbee is a kind of short distance wireless communications technology. The article discussed the technical characteristics, network topology structures and application prospects of ZigBee. And then a scheme on wireless temperature monitoring system based on ZigBee was proposed. The system adopted Star topology structure CC2430 chip of Chipcon Company and 18B20 temperature sensor of MAXIM Company. Through some related experimental results proved that the temperature monitoring system worked stably and wireless signals transmission had high accuracy, and the results verified that ZigBee technology is an ideal solution to realize the wireless monitoring network.