This book reviews and examines the reform and opening up in China from 1978 to 2011. It analyzes how China avoided to fall into the middle-income trap over those 33 years. The book makes a deep analysis of understanding how Chinese economy became a miracle in the world economic history and its development stages, as well as the overseas erroneous understanding of the existence of Chinese economy. The author analyzes from three aspects: how to break the impossible triangle , how to achieve middle-to-high speed growth in L model, and how to release a new dividend of urbanization. After Chinese economy entered the Lewis turning point, China faced the dilemma of labor transformation and the disappearance of demographic dividend, the demographic dividend turned to the reform dividend. The author points out and suggests that a new round of growth should be achieved by improving the total factor productivity in order to find a new way for the Chinese economy. This book plays an important role of comprehending Chinese economy under current complex economic situation. This book helps readers to understand Chinese economy from many aspects: impossible triangle, L model growth, Malthus trap, dual economy, aging problem, demographic dividend, reform dividend, trap of middle income, globalization, etc. The author as an economist aims for the public explaining the professional knowledge in a concise and easy way. This book delivers the information of discerning and understanding the economic trend, and predicting the future.