The present invention relates to a washing machine comprising: an outer tub support unit wherein a suspension buffering vibration of an outer tub supports the outer tub and disposed to be moved along a support rod; an elastic member elastically supporting the outer tub support unit; a first friction unit applying a frictional force to a gap between the first friction unit and the support rod; a second friction unit provided to be moved along the support rod on an upper side of the first friction unit to apply the frictional force to the gap between the second friction unit and the support rod to allow displacement with respect to the outer tub support unit inside a space limited by the outer tub support unit.
