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 , wherein the water receiving ring unit is formed by stacking multiple layers of annular water guiding grooves , 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 correspond to the balancers respectively; a plurality of water passing components connecting a part of the water guiding grooves with the balancers corresponding to the water guiding grooves ; a nozzle unit for separately injecting adjustment water into the water guiding grooves ; 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 and arranged at positions corresponding to the hollow balancers by means of a blind region of the water receiving ring unit , and are communicated with the corresponding hollow balancers through communication ports ; wherein each of the water guiding grooves 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 (X) of the washing drum , and each of the bulging portions is connected with the water passing components at a leading side of the rotation direction (X). 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 , wherein the water receiving ring unit is formed by stacking multiple layers of annular water guiding grooves , 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 correspond to the balancers respectively; a plurality of water passing components connecting a part of the water guiding grooves with the balancers corresponding to the water guiding grooves ; a nozzle unit for separately injecting adjustment water into the water guiding grooves ; 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 and arranged at positions corresponding to the hollow balancers by means of a blind region of the water receiving ring unit , and are communicated with the corresponding hollow balancers through communication ports ; wherein each of the water guiding grooves 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 (X) of the washing drum , and each of the bulging portions is connected with the water passing components at a leading side of the rotation direction (X). <EOS>