The invention relates to a conveying device of a shuttle car. The main structure of the conveying device comprises a conveying machine frame, a conveying scraper, a scraper chain component, a handpiece chain wheel shaft, an idle wheel component, a lifting cylinder, a tension cylinder, a bearing block, an unloading part, a double-speed motor and a speed reducer, wherein the floor type conveying is changed into vehicular conveying; the conveying machine frame has an integrally welded structure and is driven by the constant-power double-speed motor; the speed reducer is used for speed reduction; the handpiece chain wheel shaft, the idle wheel component, the scraper chain component and the conveying scraper are linked wholly; and the tension cylinder is tensioned to ensure that the conveying power of the shutter car is greatly improved. The conveying device has an advanced design and a compact and reasonable structure, is safe, stable and reliable, reduces the volume, saves the space, and improves the bearing capacity and the conveying capacity, so the conveying device is very perfect for the shuttle car.