As one of the most important measures this country adopts in her all-round promotion of a sustainable development strategy, development of green buildings is an important practice of her green development concept as well as a major subject for this country's governance system and governance modernization. In the process of all-round development of green buildings, many issues need to be interpreted and promoted from the height of national laws, so as to achieve results of good law and good governance, and further to reflect the social governance performance. How to correctly understand relevant issues will directly affect the further development of green buildings in China. "No rules no standards", and based on existing standards and regulations, it's sufficiently reasonable that development of green buildings should be governed by the rule of law. Based on the idea of governance modernization, to explore solutions and approaches to improve China's green building policy and regulation system is significant in theory and practice for promoting the development of China's green buildings and thus promoting the social governance in the new era.