Wagon box and wagon with same

The invention provides a wagon box and a wagon with the same. The wagon box comprises a box body, a fixing frame and a transmission mechanism. The box body comprises a box top and a top cover, whereinthe box top is provided with an opening, and the top cover covers the opening in an openable and closable manner. The fixing frame is arranged in the box body and located below the opening. The transmission mechanism is movably arranged on the fixing frame and comprises a driving part, a vertical lifting structure and a horizontal moving structure, wherein the driving part is arranged on the fixing frame and drives the vertical lifting structure to move, the horizontal moving structure is arranged between the top cover and the vertical lifting structure and located below the box top, the vertical lifting structure drives the horizontal moving structure to ascend and descend so as to make the top cover located at a closing position for closing the opening and a first opening position for opening the opening, and t