Disclosed is a drum washing machine, comprising a housing, a drum body assembly (1), and a door body assembly (2), where a front panel of the housing is provided with an opening. An axial outer extremity of the drum body assembly is provided with an upward-downward movable laundry placement/retrieval opening; a driving element (11) is provided on the drum body assembly. The door body assembly sealedly covers the laundry placement/retrieval opening. A lining element (22) is fixedly mounted on the inner side. Also, the driving element at least partly acts on the lining element. The strength of the lining element is higher than the strength of the door body assembly. In the drum washing machine of the present invention in which the laundry placement/retrieval opening is movable, with the driving element acting directly on the lining element of higher strength to push the door body assembly to move up and down with the drum body assembly, effectively prevented are cases of cracking or even breaking of a force bea
