Abstract: Since the 18th National Congress of the Communist Party of China, general secretary Xi Jinpingmade a series of new conclusions and new ideas about "political ecology". From proposing the "political ecology", formally, to "Purifying the reconstruction", and to "purifying the inner-party political ecology", it shows the epochal character and the expansibility of Xi Jinping's political ecology thought. How to construct the integrity of the party's political environment, it needs to study the Xi Jinping's political thought systematically in the new eras, especially when our party and country is facing with severe situation and challenge, it needs more Xi Jinping's political ecology theory as the guide to assault fortified positions, which formed the interactive political ecology theory, and it is the organic part of Xi Jinping's thought ofsocialism with Chinese characteristic of the new era.