To provide aseismatic reinforcing structure of a building capable of reinforcing the structure of the building inexpensively to prevent collapse of the building and functioning as an evacuation shelter when the building is destroyed.

The aseismatic reinforcing structure 1 of the building is constituted by fixing a special container 3 constituted by assembling panels 10, 11, 12 between frames 9 being a framework and having a substantially three-dimensional shape on both of an upper face of a foundation 5 and a skeleton 6 constituting the building 2.