The present invention provides a forest wood anti-theft system, which is applied for monitoring a mountain forest area. The mountain forest area has at least one entrance and a plurality of trees. The forest wood anti-theft system has a plurality of first pressure sensing units, a plurality of sound sensing units, a first processing module and a second processing module. The first pressure sensing units are provided on the entrances, the sound sensing units are provided on the trees, the first processing module is electrically connected to the first pressure sensing unit, respectively, and the second processing module is electrically connected to the sound sensing unit, respectively. According to the foresaid mutually-interacting sensing units, the present invention can detect whether or not the person has entered the forest for stealing wood, whether or not the person is stealing wood, and whether or not the person who has stolen wood is already to leave, and at the same time patrol area of forest rangers can be reduced. The present invention can also notify the police as soon as possible, so as to allow the police to early arrest the person who stole wood and reduce the escape situations.本發明提供一種林木防盜系統,其用於監控一山林區域,該山林區域內具有至少一出入口與複數林木,該林木防盜系統係具有複數第一壓力感測單元、複數聲音感測單元、一第一處理模組和一第二處理模組,該等第一壓力感測單元係設於該出入口,該等聲音感測單元係設於該等林木上,而該第一處理模組係分別與該等第一壓力感測單元相互電訊連接,該第二處理模組係分別與該等聲音感測單元電訊連接。本發明即能透過上述感測單元之互相作動而能偵測是否有盜伐者入山盜伐、盜伐者是否正在盜伐及盜伐者是否已經盜伐成功正要出山,同時也能減少巡山員龐大的巡邏面積,亦能及早通知警方,使警方早點前往緝拿盜伐者而減少逃逸情況。1‧‧‧林木防盜系統11‧‧‧第一壓力感測單元12‧‧‧聲音感測單元13‧‧‧第一處理模組131‧‧‧排序單元132‧‧‧編號辨識單元133‧‧‧重量辨識單元134‧‧‧第一判斷單元14‧‧‧第二處理模組141‧‧‧資料庫1411‧‧‧聲音資料142‧‧‧電鋸聲辨識單元144‧‧‧第二判斷單元19‧‧‧中控端
