A vehicle air conditioning apparatus comprising: an air conditioning case provided with an air passage inside thereof; a bracket to be fixed to the air conditioning case; a motor fixed to the bracket and provided with a drive shaft; a main link coupled to and rotated by the drive shaft; a plurality of doors (3,4,5) rotatably supported by the air conditioning case and configured to control an air flow passing through the air passage; and a plurality of intermediate links (13,14,15) coupled to the main link and the doors (3,4,5), and configured to drive the plurality of doors (3,4,5) in conjunction with the rotation of the main link, wherein the main link includes a first surface facing the air conditioning case and a second surface positioned on a back of the first surface, the plurality of intermediate links (13,14,15) include a first surface side intermediate link (13,14) to be arranged between the first surface and the air conditioning case, and a second surface side intermediate link to be arranged on the second surface, the first surface side intermediate link (13, 14) is rotatably supported by a first surface side link supporting portion (33,34) formed on the air conditioning case, the second surface side intermediate link is rotatably supported by a second surface side link supporting portion formed on the bracket, characterized in that the projections of the first surface side link supporting portion (33,34) and of the second surface side link supporting portion in the plane of the main link are both arranged in a movable range of the main link, wherein a dimension (L1, L2) from the center of rotation of the main link to the first surface side link supporting portion (33,34) is smaller than a dimension (L1,L2) from the center of rotation of the main link to an end of a maximum movable range of the main link, and a dimension from the center of rotation of the main link to the second surface side link supporting portion is smaller than a dimension from the center of rotation of the main link to an end of a maximum movable range of the main link. an air conditioning case provided with an air passage inside thereof; a bracket to be fixed to the air conditioning case; a motor fixed to the bracket and provided with a drive shaft; a main link coupled to and rotated by the drive shaft; a plurality of doors (3,4,5) rotatably supported by the air conditioning case and configured to control an air flow passing through the air passage; and a plurality of intermediate links (13,14,15) coupled to the main link and the doors (3,4,5), and configured to drive the plurality of doors (3,4,5) in conjunction with the rotation of the main link, wherein the main link includes a first surface facing the air conditioning case and a second surface positioned on a back of the first surface, the plurality of intermediate links (13,14,15) include a first surface side intermediate link (13,14) to be arranged between the first surface and the air conditioning case, and a second surface side intermediate link to be arranged on the second surface, the first surface side intermediate link (13, 14) is rotatably supported by a first surface side link supporting portion (33,34) formed on the air conditioning case, the second surface side intermediate link is rotatably supported by a second surface side link supporting portion formed on the bracket, characterized in that the projections of the first surface side link supporting portion (33,34) and of the second surface side link supporting portion in the plane of the main link are both arranged in a movable range of the main link, wherein a dimension (L1, L2) from the center of rotation of the main link to the first surface side link supporting portion (33,34) is smaller than a dimension (L1,L2) from the center of rotation of the main link to an end of a maximum movable range of the main link, and a dimension from the center of rotation of the main link to the second surface side link supporting portion is smaller than a dimension from the center of rotation of the main link to an end of a maximum movable range of the main link.