Because　of　the　extensity　and　complexity　in　forest　environment,　the　question　about　how　to　locate　wireless　sensor　network　node　in　monitoring　on　forest　environment　become　the　most　important　focus　in　wisdom　forest　built　project.　In　present　study,　the　main　consideration　is　the　complexity　of　the　forest　environment　and　energy　consumption　in　the　transmission　of　wireless　sensor　data.　The　purpose　is　to　do　the　widest　area　which　wireless　sensor　networks　can　maximize　coverage.　The　method　of　Particle　swarm　optitnization(PSO)　was　used　to　get　the　results　of　location　of　wireless　sensor　network　node　in　Forest　environment.　Simulation　results　showed　that　it　is　useful　to　use　Particle　swarm　optimization(PSO)　which　can　get　optimum　solution　on　wireless　sensor　network　employed.　PSO　algorithm　to　solve　the　problem　of　wireless　sensor　network　deployment　is　feasible.