Cockroach catching and killing device

The utility model provides a cockroach catching and killing device. The utility model belongs to the technical field of pest killing devices. The device comprises a trapping ladder, a trapping channeland a trapping box, the lower end of the trapping ladder contacts the ground; upper end connected with trapping channel, a one-way door is arranged in the trapping channel; the trapping channel leadsto the interior of the trapping box; a food box, a fan blade group, a rotating shaft and a cockroach placing box are arranged in the trapping box; the food box is arranged on the bracket; front and rear ends of the bracket are fixed on side walls of the trapping box; support and rotating shaft perpendicular to each other, the rotating shaft is rotationally connected with the side wall of the trapping box, the fan blade set is arranged on the rotating shaft in a sleeving mode and coaxially rotates with the rotating shaft, the fan blade set comprises a plurality of fan blades, the fan blades are opposite to the trapping