This book focuses on the China's economic strategy aiming to high-quality development in recent years. It is a paper collection of the author published since 2013. Under the basic framework of macroeconomic analysis, this book is divided into 7 chapters in accordance with the basic logic chain of "the new normal of economic development - the change of the main contradiction in society - the new development concept - the supply-side structural reform." It involves the hot topics around China's economic reform toward high-quality development including supply-side structural reform, macro-control system, fiscal policy, cutting taxes and fees, etc.