A washing machine comprising: an inner drum, provided with a washing cavity for independently containing washing water; an inner drum door, mounted at an opening of the inner drum in an openable and closable mode; characterized in that, the inner drum door comprises a door body inner shell, a door body outer shell and a door body lining; and the door body lining is clamped and fixed between the door body inner shell and the door body outer shell; the door body lining comprises a blocking part that is matched with the opening of the inner drum in shape and a connecting part that is located at a periphery of the blocking part, and the connecting part is clamped and fixed between the door body inner shell and the door body outer shell; the blocking part comprises a blocking face and a transition wall that extends from a periphery of the blocking face in an axial direction of the inner drum, and the connecting part is an annular connecting wall formed by outward flanging of a periphery of the transition wall; the inner drum door comprises a sealing element mounted on the periphery of the blocking part; a mounting space used for clamping and fixing one end of the sealing element is formed between the peripheral wall of the inner side of the inner shell body of the door body inner shell and the transition wall of the door body lining, and the periphery of the blocking face of the door body lining extends outwards in a radial direction to form a stop ring; and the other end of the sealing element abuts against the stop ring, and at least one layer of sealing band is arranged between two ends of the sealing element. an inner drum, provided with a washing cavity for independently containing washing water; an inner drum door, mounted at an opening of the inner drum in an openable and closable mode; characterized in that, the inner drum door comprises a door body inner shell, a door body outer shell and a door body lining; and the door body lining is clamped and fixed between the door body inner shell and the door body outer shell; the door body lining comprises a blocking part that is matched with the opening of the inner drum in shape and a connecting part that is located at a periphery of the blocking part, and the connecting part is clamped and fixed between the door body inner shell and the door body outer shell; the blocking part comprises a blocking face and a transition wall that extends from a periphery of the blocking face in an axial direction of the inner drum, and the connecting part is an annular connecting wall formed by outward flanging of a periphery of the transition wall; the inner drum door comprises a sealing element mounted on the periphery of the blocking part; a mounting space used for clamping and fixing one end of the sealing element is formed between the peripheral wall of the inner side of the inner shell body of the door body inner shell and the transition wall of the door body lining, and the periphery of the blocking face of the door body lining extends outwards in a radial direction to form a stop ring; and the other end of the sealing element abuts against the stop ring, and at least one layer of sealing band is arranged between two ends of the sealing element.