A washing machine comprising: a cabinet; a tub disposed in the inside of the cabinet; at least one suspension apparatus configured to reduce vibrations of the tub, and to connect the tub to the cabinet such that the tub is supported by the cabinet; and a position guide apparatus (100, 100a, 100b, 100c, 100d, 1500, 1501) having one end connected to the at least one suspension apparatus, and another end of the position guide apparatus (100, 100a, 100b, 100c, 100d, 1500, 1501) connected to the tub, the position guide apparatus (100, 100a, 100b, 100c, 100d, 1500, 1501) being configured to limit a movement range of the tub in a horizontal direction, wherein the position guide apparatus (100, 100a, 100b, 100c, 100d, 1500, 1501) comprises: a cylinder having an inside space; and a stopper having at least one portion located in the inside space of the cylinder, and a remaining portion of the stopper being located outside the cylinder, wherein the stopper includes a catching portion at one end of the at least one portion of the stopper located in the inside space of the cylinder, wherein the catching portion prevents the stopper from getting out of the cylinder, when the stopper moves back and forth in the inside space of the cylinder, the position guide apparatus (100, 100a, 100b, 100c, 100d, 1500, 1501) includes a suspension bar coupling portion provided at one end of the remaining portion of the stopper located outside the cylinder, and the suspension bar coupling portion is connected to a suspension bar included in the at least one suspension apparatus, characterized in that the stopper further includes a first absorption member disposed adjacent to the catching portion, and the stopper further includes a second absorption member disposed adjacent to the suspension bar coupling portion. [ a cabinet; a tub disposed in the inside of the cabinet; at least one suspension apparatus configured to reduce vibrations of the tub, and to connect the tub to the cabinet such that the tub is supported by the cabinet; and a position guide apparatus (100, 100a, 100b, 100c, 100d, 1500, 1501) having one end connected to the at least one suspension apparatus, and another end of the position guide apparatus (100, 100a, 100b, 100c, 100d, 1500, 1501) connected to the tub, the position guide apparatus (100, 100a, 100b, 100c, 100d, 1500, 1501) being configured to limit a movement range of the tub in a horizontal direction, wherein the position guide apparatus (100, 100a, 100b, 100c, 100d, 1500, 1501) comprises: a cylinder having an inside space; and a stopper having at least one portion located in the inside space of the cylinder, and a remaining portion of the stopper being located outside the cylinder, a cylinder having an inside space; and a stopper having at least one portion located in the inside space of the cylinder, and a remaining portion of the stopper being located outside the cylinder, wherein the stopper includes a catching portion at one end of the at least one portion of the stopper located in the inside space of the cylinder, wherein the catching portion prevents the stopper from getting out of the cylinder, when the stopper moves back and forth in the inside space of the cylinder, the position guide apparatus (100, 100a, 100b, 100c, 100d, 1500, 1501) includes a suspension bar coupling portion provided at one end of the remaining portion of the stopper located outside the cylinder, and the suspension bar coupling portion is connected to a suspension bar included in the at least one suspension apparatus, characterized in that the stopper further includes a first absorption member disposed adjacent to the catching portion, and the stopper further includes a second absorption member disposed adjacent to the suspension bar coupling portion. [