The utility model discloses a portable laundry machine which includes a casing, a brushing head, a motor (5) and a power supply part. The brushing head includes a movable brush (7). The motor (5) is used to drive the brush (7) to rotate for washing clothes. The laundry machine is also provided with a clear water storage tank (3) and a washing liquid storage tank (2) which are connected to a nozzle (8) inside the brushing head by pipes. The laundry machine is also provided with a waste liquid storage tank (1) which is connected to a wind-absorption hole (6) inside the brushing head by a liquid pumping pipe. The liquid pumping pipe is provided with a vacuum pump (4). The portable laundry machine of the utility model can do optional local cleaning for a relatively dirty area of the clothes, and avoids complete cleaning of a big piece of clothes because of a small dirt dot, which saves water, electricity and time. The utility model is convenient, fast, compact-structured, light and portable.