In the washing machine according to the present disclosure, the reinforcing member for reinforcing the strength of the balancer housing of the ball balancer is disposed on the outer surface of the balancer housing and includes a plurality of ribs. When the reinforcing member and the balancer housing are injected, a plurality of bumps may be formed inside the balancer housing by the plurality of ribs to affect the rolling of the ball. To prevent this, the reinforcing member is disposed in the area of the outer surface of the balancer housing corresponding to the non-contact surface on which the ball does not contact.