A laundry treating apparatus, comprising: a cabinet configuring an external feature and being provided with a laundry introduction port; a door being aligned to open and close the introduction port; a hinge unit (5, 6, 7) configuring a first rotating axis rotating the door in a first rotating direction, and a second rotating axis rotating the door in a second rotating direction, the second rotating direction corresponding to a direction different from the first rotating direction, the hinge unit including a first shaft and a second shaft configuring the first rotating axis, and a third shaft and a fourth shaft configuring the second rotating axis; and a rotating shaft shifting unit configured to be capable of being moved so as to rotatably fasten the door to any one of the first rotating axis and the second rotating axis, the rotating shaft shifting unit including a first shifting unit being extended along a width direction of the door, and a second shifting unit being extended along a height direction of the door from one end of the first shifting unit and selectively and rotatably fastening the fourth shaft to the cabinet, wherein the fourth shaft is provided with a protrusion protruding toward the second shifting unit, and an end portion of the protrusion comes in contact with the second shifting unit, characterized in that a fourth side flat surface is formed on the protrusion provided on the fourth shaft, and the fourth side flat surface of the protrusion supports the second shifting unit by establishing surface contact with the second shifting unit, in that the laundry treating apparatus further comprises a fourth shaft bracket installed on the door, wherein the fourth shaft is formed to be extended from one side of the fourth shaft bracket, wherein the fourth shaft bracket is formed to envelop at least a portion of the second shifting unit, wherein the fourth shaft, the protrusion and the second shifting unit are configured to rotate all together when the door rotates. a cabinet configuring an external feature and being provided with a laundry introduction port; a door being aligned to open and close the introduction port; a hinge unit (5, 6, 7) configuring a first rotating axis rotating the door in a first rotating direction, and a second rotating axis rotating the door in a second rotating direction, the second rotating direction corresponding to a direction different from the first rotating direction, the hinge unit including a first shaft and a second shaft configuring the first rotating axis, and a third shaft and a fourth shaft configuring the second rotating axis; and a rotating shaft shifting unit configured to be capable of being moved so as to rotatably fasten the door to any one of the first rotating axis and the second rotating axis, the rotating shaft shifting unit including a first shifting unit being extended along a width direction of the door, and a second shifting unit being extended along a height direction of the door from one end of the first shifting unit and selectively and rotatably fastening the fourth shaft to the cabinet, wherein the fourth shaft is provided with a protrusion protruding toward the second shifting unit, and an end portion of the protrusion comes in contact with the second shifting unit, characterized in that a fourth side flat surface is formed on the protrusion provided on the fourth shaft, and the fourth side flat surface of the protrusion supports the second shifting unit by establishing surface contact with the second shifting unit, in that the laundry treating apparatus further comprises a fourth shaft bracket installed on the door, wherein the fourth shaft is formed to be extended from one side of the fourth shaft bracket, wherein the fourth shaft bracket is formed to envelop at least a portion of the second shifting unit, wherein the fourth shaft, the protrusion and the second shifting unit are configured to rotate all together when the door rotates.