As to an air bladder having a laminate structure of an inner layer and an outer layer, there is provided a method wherein an air tightness in a joint portion of the inner layer is kept surely and a joint distance between the inner layer and the outer layer is properly configured.A hollow toric-shaped air bladder for a safety tire placed in a tire and filled with a gas and supporting a load applied to the tire by expansion-deformation based on dropping of a tire internal pressure, which has a laminate structure of an inner layer formed by rounding an innerliner member in a toric form and overlapping end portions of the innerliner member with each other at a side of an outer diameter of the toric, and an outer layer comprised of a main reinforcement member covering an outer peripheral face of the inner layer other than the overlapped portion of the innerliner member and a sub reinforcement member covering the overlapped portion including ends of the main reinforcement member.