This project is a result of energy-saving building technology. Currently, China is entering an era of large-scale construction, and energy conservation has become an inevitable trend for future building development. To implement the concept of sustainable development and fundamentally alleviate the contradiction between China's economic development and the supply of energy resources, it is necessary to advocate for energy-saving in buildings, ensure the rational use and conservation of China's energy resources, and achieve sustainable economic development. The project aims to apply national invention patent technology, utilizing two key technologies: an authorized invention patent for laser dynamic analysis method for precise measurement of buildings and urban spaces, and a utility model patent for air flow energy-saving windows. It focuses on leveraging projects such as the High-density Human Settlements Ecology and Energy-saving Key Laboratory Construction Plan, National Natural Science Foundation, and the National 'Twelfth Five-Year' National Science and Technology Support Plan. Through collaborative efforts across multiple departments, industry, academia, and research, as well as comprehensive integration demonstration, Accurate measurement of buildings and urban spaces through digital photogrammetry systems for effective energy-saving analysis of the entire building and urban space. Innovative air flow energy-saving windows are supplemented to provide corresponding energy-saving solutions for various needs of different users. The main innovative achievements of the project are as follows: (1) An invention patent discloses a laser dynamic analysis method for accurate measurement of buildings and urban spaces. In the field of PDA laser dynamic analysis technology, it is innovatively proposed for the first time to establish a simulated structure of buildings and urban spaces, scale it down proportionally within a fixed flow field, and then simulate the environmental conditions around the urban space by blowing in simulated natural wind. This successfully solves the current situation of relying on experience to implement urban architectural space wind environment design. In terms of particle image velocimetry technology, it is innovatively proposed for the first time to use through buildings and Urban space and particle image velocimetry testing can quickly, reliably, and accurately provide relevant data on the spatial environment of buildings themselves and the interrelationships between buildings within urban spaces. This technology has solved many problems in urban planning at the current stage in China. (2) A utility model patent discloses an energy-saving window for air flow. It uses a double layer of transparent glass material with a structure that places sunshade louvers between them. By utilizing the stratification principle, indoor air flows upward through the gaps between the first and second layers of transparent materials, creating circulation of indoor air. Additionally, these louvers can be adjusted according to changes in solar radiation intensity and angle, among other conditions, to regulate the indoor sunlight intensity and create a comfortable indoor environment. Improving the thermal insulation and energy-saving performance of doors and windows is an important aspect in enhancing the indoor thermal environment quality and improving the level of building energy efficiency. Residential building doors and windows are tasked with isolating and communicating the indoor and outdoor environments, which are contradictory in nature. They not only require good thermal insulation properties but also functional requirements such as ventilation, sunlight exposure, daylighting, and sound insulation. The project has been authorized with 8 invention patents, published 2 monographs, and over 40 important academic papers both domestically and internationally, including 2 papers indexed by SCI, 1 by SSCI, and 16 by EI. According to the novelty search report issued by the Science and Technology Information New Service Station L14 of the Ministry of Education on April 24, 2016, with the number 201636000L142209, the conclusion is that the research and development of the project are novel. The comprehensive technology of the project has reached a leading domestic level and an advanced international level. The project results have been successfully applied in multiple large-scale high-end residential areas such as Mudanjiang in Heilongjiang Province, Ma'anshan and Wuhu in Anhui Province. Among them, the direct economic benefits achieved in the Mudanjiang Oasis Spring City project exceeded 100 million yuan, with a savings of 76.4 million yuan. With its continued promotion and application, it will generate greater economic and social benefits. The project results have promoted the development of architectural urban space environment design technology. It also provides scientific and technical support for China to improve residential energy-saving environments in the future, with broad application prospects.