Abstract: Compared with the popular techniques for forest fire detection,a wireless sensor network paradigm based on the technique of ZigBee for forest fire detection in real time was put forward according to the factors of forest fire.The architecture of wireless sensor network for forest fire detection was described also.And the hardware circuit of networks' node was designed based on the chip of CC2430 in this paper,as well as the process of data transmission was discussed in detail.Some environment parameters such as temperature,humidity,etc.in the forest region can be monitored real-timely.From the gathered information,the decision for fire-extinguishing or fire prevention can be made rightly by related governmental departments.