The utility model relates to a one-way car body type lifting baffle which comprises a fixing frame body and a baffle body. The fixing frame body is located at the lower end, and the baffle body is located at the upper end. A movable car body is arranged between the fixing frame body and the baffle to be used for bearing the baffle body. Car wheels are installed at the bottom of the movable car body. The car wheels are arranged on a beam of the fixing frame body. Polyurethane buffers are symmetrically combined and installed between the fixing frame body and the movable car body along an opening by 360 degrees according to the needed buffering power, buffer auxiliary parts penetrating the fixing frame body to be connected with the movable car body are arranged at the installation positions of the polyurethane buffers, and disc springs or compression springs are installed on the side of the fixing frame body and used for offsetting bounce of the polyurethane buffers and restraining the movable car body to limit the left-right movement of the movable car body in the horizontal direction. A baffle lifting mechanism is connected to the upper end of the baffle body. The one-way car body type lifting baffle has the advantages of being small in occupied space, convenient to maintain, low in cost and wide in application range.