Abstract: A chain type vehicle conveying device is used in stereo garages. The vehicle conveying device includes two conveyor assemblies moving in synchronous circulating motion. Each conveyor assembly includes two parallel chains with attached plates. Parallel crossbeams are affixed to the two chains of each conveyor assembly to support a vehicle. The chains with attached plates each include an upper portion and a lower portion at any point during a moving cycle of the chains. The upper portion slides on a corresponding sliding rail mounted to a frame. The lower portion slides on a corresponding sliding pallet matching the crossbeams and mounted to the frame. Each conveyor assembly is moved by a pair of driving sprockets meshing with the two chains of the conveyor assembly and a pair of tension pulleys. A power transmission gear of the vehicle conveying device transmits power to the driving sprockets.