Forty-six Institutes of the Sixth Research Institute of China Aerospace Science and Industry Group are the earliest modern bone stem research institutes engaged in the study of complex propellants and special materials in China. 46 broke through many key technologies in propellant development and successfully completed the important task of research and development of medium energy solid propellants and equipment applications based on butyl and butyl propellant. While maintaining long-term leadership in the field of solid propellants, 46 has also achieved remarkable achievements in the fields of F-12 high-performance aramid fibers, skin capsule materials, thermal protection materials, special functional Auxiliaries, and special composite materials.