A laundry treating apparatus comprising: a cabinet having an introduction port; a laundry receiving unit located in the cabinet to receive laundry introduced through the introduction port; a door configured to open and close the introduction port; a first hinge comprising a first shaft provided at either one selected from between the cabinet and the door to define a first rotational axis of the door, and a first shaft receiving unit provided at the other one selected from between the cabinet and the door such that the first shaft is detachably received in the first shaft receiving unit; a second hinge comprising a second shaft coupled to the door to define the first rotational axis together with the first shaft, and a third shaft configured to rotatably fix the second shaft to the cabinet and to define a second rotational axis of the door; a third hinge comprising a fourth shaft provided at either one selected from between the cabinet and the door to define the second rotational axis together with the third shaft, and a fourth shaft receiving unit provided at the other one selected from between the cabinet and the door such that the fourth shaft is detachably received in the fourth shaft receiving unit; a first switching unit provided in the door in a reciprocating fashion to open and close the first shaft receiving unit; and a second switching unit provided in the door in a reciprocating fashion to open and close the fourth shaft receiving unit, the second switching unit being configured to close the fourth shaft receiving unit when the first switching unit moves in a direction in which the first shaft receiving unit is opened; a switching unit receiving unit provided in the third hinge, into which a free end of the second switching unit to close the fourth shaft receiving unit is inserted, characterized in that the laundry treating apparatus further comprising: a withdrawal prevention unit configured to detachably couple the second switching unit to the third hinge when the second switching unit closes the fourth shaft receiving unit, wherein the withdrawal prevention unit comprises: a first withdrawal prevention unit provided at either one selected from between the second switching unit and the switching unit receiving unit, and a second withdrawal prevention unit provided at the other one selected from between the second switching unit and the switching unit receiving unit such that the second withdrawal prevention unit is detachably coupled to the first withdrawal prevention unit when the door is rotated about the second rotational axis. a cabinet having an introduction port; a laundry receiving unit located in the cabinet to receive laundry introduced through the introduction port; a door configured to open and close the introduction port; a first hinge comprising a first shaft provided at either one selected from between the cabinet and the door to define a first rotational axis of the door, and a first shaft receiving unit provided at the other one selected from between the cabinet and the door such that the first shaft is detachably received in the first shaft receiving unit; a second hinge comprising a second shaft coupled to the door to define the first rotational axis together with the first shaft, and a third shaft configured to rotatably fix the second shaft to the cabinet and to define a second rotational axis of the door; a third hinge comprising a fourth shaft provided at either one selected from between the cabinet and the door to define the second rotational axis together with the third shaft, and a fourth shaft receiving unit provided at the other one selected from between the cabinet and the door such that the fourth shaft is detachably received in the fourth shaft receiving unit; a first switching unit provided in the door in a reciprocating fashion to open and close the first shaft receiving unit; and a second switching unit provided in the door in a reciprocating fashion to open and close the fourth shaft receiving unit, the second switching unit being configured to close the fourth shaft receiving unit when the first switching unit moves in a direction in which the first shaft receiving unit is opened; a switching unit receiving unit provided in the third hinge, into which a free end of the second switching unit to close the fourth shaft receiving unit is inserted, characterized in that the laundry treating apparatus further comprising: a withdrawal prevention unit configured to detachably couple the second switching unit to the third hinge when the second switching unit closes the fourth shaft receiving unit, wherein the withdrawal prevention unit comprises: a withdrawal prevention unit configured to detachably couple the second switching unit to the third hinge when the second switching unit closes the fourth shaft receiving unit, wherein the withdrawal prevention unit comprises: a first withdrawal prevention unit provided at either one selected from between the second switching unit and the switching unit receiving unit, and a second withdrawal prevention unit provided at the other one selected from between the second switching unit and the switching unit receiving unit such that the second withdrawal prevention unit is detachably coupled to the first withdrawal prevention unit when the door is rotated about the second rotational axis.