Disclosed is a drum washing machine, comprising a rotatable inner drum (28); two ends of the inner drum (28) are closed and rotatably mounted on a support device by means of rotation shafts (10, 32) respectively; the side wall of the inner drum (28), is provided with an opening for picking up and putting in clothes, an openable/closable inner sealing cover (27) being mounted on the opening; at least one rotation shaft (10) of the rotation shafts (10, 32) at the two ends of the inner drum (28) is internally provided with a water flow passage for water inflow and/or drainage. The inner drum (28) can be entirely made into a non-porous inner drum. During washing, the inner drum (28) contains the washing water, and the inner drum (28) rotates to wash clothes; the two closed ends of the inner drum being rotatably mounted on the support device by means of the rotation shafts (10, 32) respectively enables the rotation of the inner drum; and at least one rotation shaft (10) of the rotation shafts (10, 32) at the two e
