A passenger air bag apparatus may include an air bag door, a chute positioned on both ends of the air bag door, wherein the chute has a first fitting hole in one end thereof and a second fitting hole in the other end thereof, and an air bag housing having a first hook received in the first fitting hole and a second hook received in the second fitting hole, wherein an air bag may be contained in the air bag housing, and wherein the first hook may be in contact with an edge of the first fitting hole, and the second hook may be not in contact with an edge of the second fitting hole.