The invention provides a dumper tail plate capable of being opened and closed in multiple directions, and a dumper with the tail plate. The tail plate comprises a tail plate frame and a tail plate gate arranged in the tail plate frame, wherein the tail plate frame comprises a first vertical beam, a second vertical beam, and a transverse beam connected with the bottom end of the first vertical beamand the bottom end of the second vertical beam; front-back opening and closing hooks are respectively arranged at the top end of the first vertical beam and the top end of the second vertical beam; bottom locking mechanisms are arranged on the transverse beam; the tail plate gate is hinged to the outer side of the second vertical beam in the manner that the tail plate gate can rotate for 270 degrees; and a locking mechanism is arranged between the tail plate gate and the first vertical beam. The tail plate provided by the invention has the advantages of being scientific in design, high in adaptability, high in dumping efficiency, and various in opening manners.