A washing machine having a plurality of tubs includes a cabinet (110) having a first tub (220) disposed therein, a first door (120, 120', 120'', 420) having a second tub disposed therein, to open and close a laundry introduction opening (121) formed at the cabinet (110), a second door (130) to open and close a laundry introduction opening (121) of the second tub, a first water supply part (255) and a second water supply part (261, 263, 265) to supply washing water to inside of the first tub (220) and the second tub, respectively, and a first water discharge part (285) and a second water discharge part (273-275) to discharge washing water from the first tub (220) and the second tub, respectively. This configuration allows a washing process to be performed at a plurality of spaces. (Fig. 2)