The invention discloses an oil smoke recovery device of a mesh belt furnace. The oil smoke recovery device of the mesh belt furnace aims to recover oil smoke in waste gas discharged by the mesh belt furnace. According to the technical scheme, the oil smoke recovery device of the mesh belt furnace comprises a fixing frame which is fixedly connected to the mesh belt furnace, and is characterized inthat the fixing frame is provided with a collecting pool used for cooling and collecting the oil smoke, a certain amount of water is stored in the collecting pool, a vent pipe is connected between thecollecting pool and a smoke exhaust pipeline of the mesh belt furnace, the end, located in the collecting pool, of the vent pipe extends to the bottom of the collecting pool, a net plate which is used for dividing gas entering the collecting pool from the vent pipe into several small bubbles is arranged in the collecting pool, a discharging port for allowing oil stains to be discharged is formedin the side wall of the collecting pool, and the discharging port is close to the upper end surface of the collecting pool. According to the oil smoke recovery device of the mesh belt furnace, the oilsmoke discharged by the mesh belt furnace can be conveniently collected, and environmental pollution can be reduced.