AIR CONDITIONER FOR VEHICLE

The present invention relates to an air conditioner for a vehicle having a cover of an improved structure which can prevent foreign matters from being introduced into a sliding door driving part and also prevent the introduced foreign matters from being stuck in the driving part. The air conditioner for a vehicle, which includes an air-conditioning case having a heat exchanger, and a first door and a second door disposed in the air-conditioning case to adjust the degree of opening of an air passageway, further includes: a plurality of driving parts for interlocking and operating the first door and the second door; and a cover part for fixing the driving part to the air-conditioning case. The cover part covers at least one among the plurality of driving parts.