An automobile airbag door includes a base member, a cover member, which is bonded to the surface of the base member, and a tear line, which is formed in the back side of the base member. The tear line is configured to be a starting point of tearing when the base member is pressed by an airbag being deployed and inflated. The cover member includes a three-dimensionally knitted cushion layer bonded to the surface of the base member and a covering bonded to the surface of the three-dimensionally knitted cushion layer. The three-dimensionally knitted cushion layer is made of a double-raschel knitted fabric. The base member includes at least one projection that is formed on the surface of the base member and arranged to be adjacent to the tear line.