The green renovation of existing buildings is an important measure to achieve energy conservation and emission reduction targets and build a “resource-saving and environment-friendly society”, and its orderly development is inseparable from government market supervision. Based on combing and comparing the theoretical research results of energy-saving renovation of existing buildings at home and abroad, demonstrating the necessity and value of the research on the reform and implementation path of the existing building green renovation market supervision model. Taking into account the special characteristics of the green renovation of existing buildings, such as the overall integration of the renovation process and content, the diversity and integration of renovation goals, and the hierarchical complexity of interest relationships between subjects,the research content and implementation plan of the reform and implementation path of the existing building green renovation market supervision model are structured.