钱学森是中国系统工程的开创者和奠基人。他根据中国航天的实践经验，总结提出了具有中国特色的系统工程方法，并进一步发展系统科学体系和综合集成方法等理论方法。通过回顾钱学森发展系统工程的历程，不仅可以正确地理解钱学森系统工程思想方法，也可以为发展体系工程找到思路和方法。

Mr. Qian Xuesen is the founder of China's systems engineering theory. According to the experience of China's aerospace industry, he summed up the systems engineering methods with Chinese characteristics, and further developed the theories of system science architecture and meta-synthesis method, etc. By reviewing development process of Qian Xuesen's thought on systems engineering, we can not only understand his thought on systems engineering correctly, but also find out guide and methods for developing SOS engineering.