Abstract: The sixth Plenary Session of the 19th CPC Central Committee pointed out that since the 18th CPC National Congress, China's ecological and environmental protection has undergone a historic, transforming and overall change. In the new era, China's ecological civilization construction has entered the fast lane and made remarkable achievements. Exploring the theoretical and practical logic behind the achievements is of great significance for realizing new progress in ecological civilization construction and building a beautiful China.This paper makes the dual logic analysis of dilemma and breakthrough, theory and practice as the main line, and on the basis of retrospecting the dilemma faced by ecological civilization construction since the reform and opening up, it explains the correct guidance and scientific guidance of Xi Jinping's ecological civilization thought on ecological civilization construction in the new era, and constructs the theoretical logic of breaking the situation of ecological civilization construction in the new era. Under the guidance of Xi Jinping's thought on ecological civilization, the construction of ecological civilization has achieved the system break, the problems break, the governance break and the supervision break in practice, the interlocking practical logic of ecological civilization construction in the new era has been formed, and creating the trend of breaking the ecological civilization construction in the new era by leaps and bounds.