The book summarizes the 60 year development of economic theories, explaining in detail the features and development of economic theories from 1949 to 1976 and in the reform and opening-up period. The author has made a systematic theoretical analysis on the economic situation from two different stages — before and after China's reform and opening-up, which put forward many unconventional point of view, and it has contributed visionary ideas for the research on China's economy. It provide the readers with a general understanding of the economic trend and development of contemporary China, with many pertinent answer to the practical and concrete problems about China's economy.