The invention provides a washing machine, a control method and device thereof and a computer readable storage medium. The control method of the washing machine comprises the steps of controlling a first drive device to drive a movable plate to move close to or away from a fixed plate relative to the fixed plate so that the space of the washing space can be matched with parameters of washings; controlling the water inlet and washing water amount of the washing machine; controlling a second drive device to drive the movable plate to move relative to the fixed plate so as to wash washings. According to the control method of the washing machine, electricity of the first drive device and the second drive device is converted into mechanical reciprocating rotation or other limited stroke linear motion of the movable plate, by means of the washing advantage of a washboard for clothes, personal clothes of a user can be quite efficiently rubbed and washed, and the cleaning effect which cannot beachieved by traditional roller or impeller washing machines is achieved.