The invention belongs to the technical field of food processing, and specifically discloses a bacon smoking machine, which includes a smoking box, in which a turntable, an inner ring gear and a cylindrical cam are arranged from top to bottom, and the turntable is rotatably connected to the smoking box , the inner ring gear and the cylindrical cam are fixedly connected to the smoking box, the inside of the turntable is hollow, and there is a smoke generation chamber inside the turntable, the top of the turntable is provided with a smoke outlet connected with the smoke generation chamber, and there are several The through holes are slidingly connected with support columns, the top of the cylindrical cam is provided with a track, the track includes a raised part, a straight part and a falling part, the bottom of the support column is against the track, and the top is fixed with a bacon suspension frame. The support columns are all located inside the inner ring gear, and the lower part of the side wall of the support columns is provided with driving teeth meshing with the inner ring gear; the bacon suspension racks are all provided with a socket mechanism and a wiping mechanism. In the present invention, the cam is applied and smoked at the same time, which simplifies the process of bacon production and improves the efficiency of bacon production.