A clean-water-washing function control method of a washing machine, the method comprising: step A: receiving a selection instruction of a laundry process; step B: enabling or disabling selection of a clean-water-washing function of the washing machine according to the selection instruction. A user can self-select the laundry process and decide whether to use the clean-water-washing function, so that the control method not only helps guide the user in choosing to wash clothing in a water saving manner, but can also wash the clothing effectively, and protect the clothing and a recycled water filtration system. Moreover, an autonomous and intelligent washing environment is created for the user.