In China, the construction and building exterior shading using relative interior shade less, this does not help to reduce overall building energy consumption. In other countries, the mainstream sun shade is building outside the building, or even in the office buildings and family apartments. But at present, China is still prevailing indoor Stocks shade. Building energy-saving effect of building exterior shading, no doubt, increase the proportion of building exterior shading applications is the need for more people to work together. Of course, as people and building shade understanding economic level, building exterior shading applications will be more and more buildings will shade with the development of building energy wave into a new phase. The rise of green building and seriously great importance in the country makes the building energy-related industries are heartened. Architecture building exterior shading shade especially for building insulation, decorative dimming, green energy has great significance. Building energy efficiency, green building received much support to the relevant government departments have also put the appropriate policies to encourage energy-saving green buildings construction and existing buildings. Green building is bound to become a trend, and also led to the rapid development of related industries and innovation. Building shade is one of them.