PROBLEM TO BE SOLVED: To provide a simple device capable of always and efficiently catching a harmful animal without injuring it. SOLUTION: A flexible mesh bag (N) is hung by a frame (F) in a rectangular parallelepiped holding form in which only the front surface is opened, and the upper edge portion of the front opening of the mesh bag is a movable hanger bar () of the frame. 22), the lower edge of the front opening is also attached to the grounding bar (15) of the skeleton respectively, and further the edge portions of the front opening are woven in a stretchable manner to the pair of right and left telescopic guide columns (19) for the net bag in the skeleton, The hanger bar is suspended from the top bar (17), which is fixed to the upper position of the hanger bar (17) by the drop operation trigger (T), and the harmful animal intrusion detection sensor (37) invades the net bag. Based on the output signal detected by the animal, the trigger was released, and the hanger bar was dropped to close the front opening of the mesh bag. [Selection diagram] Figure 1【課題】有害動物を負傷させることなく、常時確実に効率良く捕獲できる簡素な装置を提供する。【解決手段】柔軟な網袋（Ｎ）を骨組（Ｆ）によって、その正面だけが開口する直方体の保持形態に吊持し、上記網袋の正面開口上縁部をその骨組の可動ハンガーバー（２２）へ、同じく正面開口下縁部を骨組の接地バー（１５）へ各々取り付け、更に正面開口側縁部を骨組における左右一対の網袋用伸縮ガイド支柱（１９）へ伸縮自在に編み込むと共に、上記ハンガーバーをその落下作動用トリガー（Ｔ）により、これよりも上段位置に固定横架されたトップバー（１７）から吊り下げて、有害動物侵入検知センサー（３７）が網袋へ侵入した有害動物を検知した出力信号に基き、トリガーを解放して、上記ハンガーバーが落下し、網袋の正面開口を閉鎖するように定めた。【選択図】図１
