The invention discloses a novel wagon for piggyback transport. The novel wagon for piggyback transport comprises trays, a wagon-mounted lifting device and a wagon-mounted rotating device. The trays can be stacked on a bottom frame of the plate type wagon and used for containing road freight cars or road semi-trailers for piggyback transport. The wagon-mounted lifting device is arranged on the bottom frame and used for driving the trays to ascend and descend relative to the bottom frame. The wagon-mounted rotating device is arranged on the bottom frame and used for pushing the trays to rotate in the horizontal plane relative to the bottom frame. Compared with the prior art, the novel wagon has the advantages that a traditional wagon bottom frame can be used basically, and no bottom frame special for piggyback transport needs to be provided. In addition, only the low-weight trays need to be rotated during loading and unloading, the dynamic performance requirement for the wagon-mounted rotating device is lowered accordingly, and then the manufacturing cost of the wagon for piggyback transport is reduced.