Since the “121” project in 1963, Sinoma Snythetic Crystals Co., Ltd. participated in the research of the first synthetic diamond in China, and went through a difficult and glorious days of 60 years in the research of high temperature and high pressure synthesis of diamond, including belt press, diamond tools and chemical vapor deposition diamond. Through the efforts of several generations of hard works, great achievements have been made in the technology of diamond systhesis and the application of diamond tools in China. Researchers made great contributions to the diamond course in China. Reviewing the 60 years of development of diamond technology of Sinoma Snythetic Crystals Co., Ltd. it is expected to provide inspiration and reference for researchers in the new era in terms of the external environment responds to policy trends, scientific research, transformation of technological achievements, and developmental ideas.