Abstract: The modern construction industry is developing rapidly, and the concept of green energy saving has gradually become a social consensus. It is an inevitable choice to actively practice the modern green construction and vigorously promote the construction and development of modern construction projects.In the traditional construction engineering design and construction, the awareness of energy saving is not strong, too much attention to the beautiful form and construction cost, which leads to the final building with large energy consumption and large pollution. Even if the construction cost is greatly reduced, there are shoddy construction materials, burying a series of quality hidden dangers for the project.Based on this, we should further promote the optimization of modern green building energy-saving design, grasp the design connotation, introduce the green concept to build energy-saving buildings, and strive to realize resource recycling, and create a more comfortable and healthy living environment.This article starts to analyze the relevant content of modern green building energy-saving design. While understanding the connotation of modern green building, it puts forward reasonable suggestions to promote the development of modern green building energy-saving design, in order to promote the modernization and upgrading of the construction industry.