With the changes in domestic policies and market orientation, various gratifying information in the door, window and curtain wall industry continues to emerge, but at the same time, both suppliers and service providers in the domestic building door, window and curtain wall industry still generally have weak brand awareness, single marketing channels and marketing methods. Serious product homogeneity and lack of innovation in product technology, pseudo-innovation and other issues. In order to help enterprises in the industry chain of the building door, window and curtain wall industry to better understand the status and status of the industry, so as to improve their product quality and service capabilities, relevant institutions have sorted out and analyzed the overall economic situation of the door, window and curtain wall industry.