The invention provides a washing method for a washing machine. The washing machine comprises an internal tub, a motor, a draining valve and a main controller; and the washing method is characterized by comprising the following steps: (1) normally washing; (2) rinsing for a plurality of times; (3) completing the rinsing, starting the draining valve to access a draining state, wherein the delay starting time of the motor is T1; (4) electrifying the motor to drive the internal tub to rotate, wherein the rotary cleaning time is T2; (5) after completing once rotary cleaning, interrupting the power supply of the motor to drive the internal tub to rotate under inertia, wherein the rotating time under inertia is T3; (6) determining whether the circular cleaning time N of the internal tub reaches a preset value, if so, entering the next step, if not, returning to step (4); (7) electrifying the motor to enter a dewatering program, wherein the dewatering time is T4; (8) stopping the motor to complete the dewatering, and judging whether the rinsing at the time is the last rinsing, if so, entering the next step, if not, returning to step (2); and (9) drying in the air. According to the washing method, the tub is cleaned following the rinsing at each time, thus, the washing tub is repeatedly cleaned for a plurality of times, and the washing tub can be ensured to be cleaned efficiently.