He was appointed at the Institute of Telecommunications Technology (Ministry of Posts & Telecommunications) and later Institute of Electronic Science (Communication Department of PLA). In 1956, Liang transferred to the Fifth Institute of Ministry of Defense. He became the deputy director of Research Office of Missile Control System, working under Qian Xuesen. He acted an important role on the design of Dongfeng 2A missile, Dongfeng 5 missile, Long March 2 rocket and Long March 3 rocket.