The invention discloses a high-strength annular spring in the field of springs. The high-strength annular spring comprises multiple pieces of gasket-shaped spring steel with the inner conical surfacesand the outer cylindrical surfaces, multiple pieces of gasket-shaped spring steel with the inner cylindrical surfaces and the outer conical surfaces and small cylindrical springs arranged between thegasket-shaped spring steel with the inner conical surfaces and the outer cylindrical surfaces and the gasket-shaped spring steel with the inner cylindrical surfaces and the outer conical surfaces sequentially from top to bottom. The annular spring is formed by alternate overlapping combination of the multiple pieces of gasket-shaped spring steel with the inner conical surfaces and the outer cylindrical surfaces and the multiple pieces of gasket-shaped spring steel with the inner cylindrical surfaces and the outer conical surfaces. The high-strength annular spring is simple in structure, is internally provided with the small cylindrical springs and is good in buffer effect.