A washing machine, comprising: a washing drum; a plurality of hollow balancers arranged on an inner circumferential surface of the washing drum along an axis direction of the washing drum, wherein the balancers are lifting ribs for lifting washings; a water receiving ring unit (18, 69), wherein the water receiving ring unit is formed by stacking multiple layers of annular water guiding grooves (19a, 19b, 19c, 68), and fixed to an end in the axis direction of an outer surface of the washing drum, wherein the multiple layers of annular water guiding grooves (19a, 19b, 19c, 68) correspond to the balancers respectively; a plurality of water passing components (24a, 24b, 24c, 74) connecting a part of the water guiding grooves (19a, 19b, 19c, 68) with the balancers corresponding to the water guiding grooves (19a, 19b, 19c, 68); a nozzle unit for separately injecting adjustment water into the water guiding grooves (19a, 19b, 19c, 68); characterized by a plurality of water storage tanks disposed on a bottom of the washing drum as water storage portions; wherein the water storage tanks are hollow components arranged on a radial outer side of the water receiving ring unit (18, 69) and arranged at positions corresponding to the hollow balancers by means of a blind region of the water receiving ring unit (18, 69), and are communicated with the corresponding hollow balancers through communication ports; wherein each of the water guiding grooves (19a, 19b, 19c, 68) comprises: an annular water guiding groove body; and bulging portions protruding from the water guiding groove body to a radial outer side, wherein a connecting opening (68a1) communicated with the water guiding groove body is formed in each of the bulging portions at a lagging side of a rotation direction of the washing drum, and each of the bulging portions is connected with the water passing components (24a, 24b, 24c, 74) at a leading side of the rotation direction. a washing drum; a plurality of hollow balancers arranged on an inner circumferential surface of the washing drum along an axis direction of the washing drum, wherein the balancers are lifting ribs for lifting washings; a water receiving ring unit (18, 69), wherein the water receiving ring unit is formed by stacking multiple layers of annular water guiding grooves (19a, 19b, 19c, 68), and fixed to an end in the axis direction of an outer surface of the washing drum, wherein the multiple layers of annular water guiding grooves (19a, 19b, 19c, 68) correspond to the balancers respectively; a plurality of water passing components (24a, 24b, 24c, 74) connecting a part of the water guiding grooves (19a, 19b, 19c, 68) with the balancers corresponding to the water guiding grooves (19a, 19b, 19c, 68); a nozzle unit for separately injecting adjustment water into the water guiding grooves (19a, 19b, 19c, 68); characterized by a plurality of water storage tanks disposed on a bottom of the washing drum as water storage portions; wherein the water storage tanks are hollow components arranged on a radial outer side of the water receiving ring unit (18, 69) and arranged at positions corresponding to the hollow balancers by means of a blind region of the water receiving ring unit (18, 69), and are communicated with the corresponding hollow balancers through communication ports; wherein each of the water guiding grooves (19a, 19b, 19c, 68) comprises: an annular water guiding groove body; and bulging portions protruding from the water guiding groove body to a radial outer side, wherein a connecting opening (68a1) communicated with the water guiding groove body is formed in each of the bulging portions at a lagging side of a rotation direction of the washing drum, and each of the bulging portions is connected with the water passing components (24a, 24b, 24c, 74) at a leading side of the rotation direction.