A vehicle air conditioning apparatus in which a noise caused by burble is reduced is provided. The vehicle air conditioning apparatus includes: a case having an air channel in an interior thereof; a blower configured to supply blown air to the air channel, the case includes a cylindrical portion and an enlarged portion continued from the cylindrical portion on a downstream side and having a cross-sectional area larger than a cross-sectional area of the cylindrical portion, the enlarged portion includes a projecting wall having a wall surface projecting outward of the air channel, the projecting wall includes at least one projection projecting inward of the air channel, and a top portion of the projection is in contact with a side surface of an virtual cylinder, which is formed by extending the inner wall surface of the cylindrical portion in the virtually extended toward the downstream, or is provided on the projecting wall side with respect to the side surface of the virtual cylinder.