Due to the occurrence of global warming forest fires more frequent, the damage caused was shocking in recent years. In order to reduce this natural disaster, forest monitoring as an important part of forest fire prevention, which is also more valued by the public and adopts the wireless sensor network as a new type of monitoring methods. This system can form a large range of real-time detection network throughout the sensing nodes, provide great convenience for protective workers. However, this technology still has some drawbacks, such as the endurance ability and the accuracy of locating the fire source, so this paper analyzes the problem, and provides a solution.