The invention relates to a device to kill mosquitoes and/or flies. The device comprises a upper barrel with electrically control loop, a connecting rod for attaching inducer and a lower barrel for containing the liquid to smother mosquitoes and/or flies； the device coaxially arranges the upper, middle and lower barrel； the head and tail portion of the connecting rod respectively connect to the upper barrel and the lower barrel, the middle barrel axially moves between the inner bottom of the upper and lower barrel, a agglutinate block for attaching inducer and a third lower cover for stripping mosquitoes and/or flies gathered on the rod are arranged to the internal barrel, non-toxic inducer entices mosquitoes and/or flies to gather on the rod, then a mechanical manner is taken to smother them, the killing course do not cause secondary pollution or threat to health.
