Silkworm breeding device capable of improving space utilization rate of silkworm room

The invention discloses a silkworm breeding device capable of improving the space utilization rate of a silkworm room, and belongs to the technical field of silkworm machinery. Comprising a silkworm frame, a sliding rail, a crane, a track, an inspection nursing trolley and a silkworm feeding machine, the crane moves on the sliding rail, the silkworm frame is a layered silkworm frame and comprises a frame body and supporting plates, the supporting plates are fixed to a floor in rows, one end of the frame body is connected with the supporting plates in a layered mode, and the other end of the frame body is suspended; the track is arranged on the floor and located beside the suspended ends of the two rows of frame bodies. And the patrol car and the silkworm feeding machine move back and forth on the track, and when the patrol car and the silkworm feeding machine walk to the tail end of the track, the patrol car and the silkworm feeding machine are hoisted by a crane to exchange the track or are hoisted and place