An insect trap includes a trap assembly and a trapping box provided with an opening in the upper end thereof, wherein a killing component is arranged in the trapping box; the trapping box is arranged below the trap assembly, and the bottom of the trapping box is connected to the trap assembly; and a space for insects to pass through is maintained between the trap assembly and the upper edge of the trapping box. The insect trap can lure insects moving around the insect trap into the trapping box, and can effectively prevent insects from climbing onto the trap assembly.