Laser welding technology is an important technical means to improve the machining precision, machining efficiency and service safety of ultra-high strength steel solid rocket motor. The article combed the research progress in all position welding, single pass full penetration welding, laser power modulation welding and welding molten pool simulation of the ultra-high strength steel structures at home and abroad. The potential application perspective of these research progress of key technologies in laser welding quality control of super-high strength steel solid rocket motor shell are systematically expounded. The research progress described in this paper can provide reference for the high quality and efficient manufacture of ultra-high strength steel solid rocket motor shell in china.