Land reform has been the most challenging social issue for China, which is in transition from an agricultural society to an industrialized country. As the initiator of "common-ownership trust", the author introduces trust theory into China's land reform, trying to settle the issues of land right verification and land circulation. Firstly, this book reflects on land circulation and common ownership theoretically. Then it reviews China's rural land system transition in history as well as its current circumstances and problems. Based on theoretical thinking and practice, this book proposes land trust and expounds on its nature and content. Lastly, it interprets the "cloud trust + land trust" model which combines science, technology, knowledge and capital with land to realize the intensive and overall development of land. This book attempts to solve China's land problems with financial tools, which provide significant implications for not only land reform but also trust theory study.