Abstract: In terms of artificial forest plantation, surroundings determine the growth situation of trees, which is an important factor for guaranteeing both quality and quantity. Previously, the growth information and growth situation are judged by experience. Compared with it, the newly-put-forward forest wireless monitoring system of Internet of Things which is based on the Zigbee technology can monitor the growth information and the surroundings of trees accurately and in any time as well as conduct reasonable and precise control over them through organizing the forest wireless monitoring system of Internet of Things. This system designs the modularized wireless node hardware with chip Atmega128L and CC2420 as its core and integrates them into various sensor modules such as growth, humidity and temperature of trees. It also completes the multi-sensor finite state machine program according to Z-stack protocol stack and improves composition of the gateway structure. The statistical data are obtained through a large number of experiments. The system has strong stability and can satisfy application of Internet of Things of the forest data monitoring.