As a landmark building of the city, public buildings play a model role for the entire construction industry, and often represent the advanced level of domestic and even international in terms of architectural form and function. In recent years, the energy conservation and ecology of buildings have received extensive attention and attention from all walks of life. Green buildings and energy-saving buildings have become the development trend and building model of modern buildings. Public buildings should be the forerunner of the design concept of energy-saving and ecological buildings, and the first to apply various building energy conservation designs and facilities. To prevent the outer envelope of the building from being excessively heated by the sun, to prevent local overheating and the generation of glare, and to protect various indoor items, the installation of shading products to the building is a necessary measure. Its reasonable design is an important factor to improve indoor thermal comfort in summer and reduce building energy consumption.