The present invention relates to a cockroach killer, which is composed of a hollow tube, a sensor, and a spray bottle having at least one nozzle. The hollow tube width is just sufficient for cockroach passing, and the side and bottom of the hollow tube are respectively provided with at least one first hole and at least one second hole. Both ends of the hollow tube are respectively provided with an entry and an exit. Bait is disposed at a position near the outlet. The sensor is electrically connected with a voltage source and is disposed at the first hole of the hollow tube. The spray bottle is electrically connected with the voltage source. Each of the nozzles is disposed at each of the second holes of the hollow tube. Thus, when the cockroach passes the hollow tube, the nozzle sprays bubble liquid by the sensing of the sensor to block the breathing holes of cockroach to cause suffocation. The killer can be repeatedly used to kill the cockroach in an environmental protection manner, and may gather up the dead cockroaches for disposal without causing environment hygiene problem.本發明係有關於一種「滅蟑裝置」,其係由一中空通管、一感應器及一具一以上噴嘴之噴霧瓶所組成;通管寬度恰得以供蟑螂通過,通管側面及底面分別具有一以上之第一孔及一以上之第二孔,且通管兩端分別具有一入口及一出口,而通管鄰近出口位置裝設一誘餌,而感應器與電壓源形成電連結,且感應器裝設於通管之第一孔,而噴霧瓶與電壓源形成電連結,且各噴嘴分裝設於通管之各第二孔;藉此,當蟑螂通過中空通管藉由感應器感應使噴嘴噴出泡沫液體,阻絕蟑螂呼吸氣孔造成窒息死亡,達到不僅可重覆使用,環保滅蟑,且可將死掉的蟑螂集中、丟棄,不會造成環境衛生問題。10‧‧‧通管12‧‧‧第二孔13‧‧‧入口20‧‧‧感應器30‧‧‧噴霧瓶31‧‧‧噴嘴40‧‧‧電池盒401‧‧‧板片41‧‧‧電池50‧‧‧組裝塊52‧‧‧第一鏤孔53‧‧‧第二鏤孔60‧‧‧收集盒61‧‧‧容置空間70‧‧‧誘餌盒71‧‧‧凹陷部72‧‧‧透孔
