Provided are a washing machine tub and a washing machine. The washing machine tub includes a front plate (3) and a tub body formed by two side plates (1) and a rear plate (2). The tub body is formed integrally. The tub body and the front plate (3) are respectively provided with a main body flange (4) and a front plate flange (5) at binding ends. A protruding rib (9) and a groove (8) are cooperatively provided at the main body flange (4) and the front plate flange (5) respectively, along a length direction thereof to prevent deformation of the tub.