The fifth plenary session of the 18th CPC centralcommittee established the concept of innovative，coordinated，environmental，open and Shared developing.Keeping green development actually is a kind of revolutionto solve the balance problem between human and nature. Therefore，combined studying the social fact andPresident Xi’s theory in Zhejiang would be helpfulto establish and popularize the concept of greendevelopment. It also keeps the positive effect to pushindustrial transformation，strengthen supply reform，andpromote the construction of ecological civilization. The research achievement of‘ two mountain’ is notonly the paradigm in Zhejiang’s green developing，butalso the conclusion of the new concept of Zhejiang majortheory. Minister Ge Huijun (members of the StandingCommittee of the Zhejiang Provincial Committee，andthe minister of Propaganda Department) set up a researchgroup to study the two mountain concept. They studiedfrom the background，theoretical references，theoreticalinnovation，Zhejiang’s social facts，typical cases，implementation，basic experience and general definition.This research result keeps significant research value，andfills the defect in green development. It also provides thetheory support to promote economic transformation，andimplement the new green development. The publication of this book is conducive to enrichand improve the theoretical system of socialism withChinese characteristics； it is conductive enrich theMarxism developing theory； it is conducive to enhancingthe theoretical self-confidence of socialism with Chinesecharacteristics； it is conducive to guide the greendeveloping in China and the worldwide.