This project falls within the field of historical building conservation and regeneration engineering technology. The core concept 'historical building' encompasses both the traditional Chinese architectural heritage and the modern architectural heritage influenced by Western industrial civilization, making it an indispensable cultural strategic resource for future urban and rural development. However, apart from a very small proportion of ancient cultural relic buildings that have relatively mature restoration techniques, there has always been a lack of a technical system suitable for the preservation and regeneration of most historical buildings. There are clear misconceptions, gaps, and technological disparities in practice across various regions. Since Chinese historical buildings have been facing an endangered state during the urbanization transition period, especially as a large number of local vernacular buildings are disappearing at an alarming rate, it is indeed urgent to study and apply universal conservation and regeneration technology systems and their key technologies. Historical buildings are like old organic life forms, A systematic engineering approach involving multidisciplinary 'consultation' and comprehensive 'diagnosis and treatment' is necessary to achieve the goals of sustained preservation and regeneration. However, in reality, due to the barriers of disciplines and the separation of specialties, these 'diagnosis' and 'treatment' are often isolated from each other, resulting in significant limitations for collaborative innovation and technological integration. The pioneering research on the technical system and key technologies in this project is based on the following thought process: First, through historical and current information collection and analysis techniques, perform 'pathological diagnosis'. Second, develop special technologies such as maintenance, reinforcement, and renovation to carry out 'treatment', including 'skin' - the repair of the superficial layer, 'muscle' - the maintenance and renovation of the body. "Skeleton" -- Reinforcement of structural entities, "Vessels" and "Nerves" -- Transformation of pipeline equipment, "Organs and Zang-Fu" -- Regeneration of space. Furthermore, the establishment of an "Medical Case" information database -- Demonstration engineering technology expert system. Since 2003, with the support of multiple national projects and topics, it was the first time in China to integrate interdisciplinary professional resources from architecture, planning, civil engineering, materials science, surveying, cultural relics management, etc., creating a complete technical system and operational procedures that cover concept definition, value assessment, restoration techniques and standards, to product development and engineering demonstration platforms. The completed innovative achievements can be summarized as follows: 1. Proposed a historical building value assessment model and a structural performance evaluation method based on protection requirements. Based on the research findings of 'Material Pathology', a series of historical building maintenance surface repair technologies and procedures have been developed. 3. The performance recovery theory of structures has been studied from different aspects such as mechanics, chemistry, and biology, and corresponding performance recovery and enhancement technologies have been developed. 4. For the first time, an adaptive theory and planning design method for the protection and regeneration of widely distributed 'local architectural styles' in historical buildings have been proposed, directly addressing the issue of preserving regional characteristics brought about by urbanization. The application results have international influence. Since the implementation of the project, 11 series products, 8 technologies, 6 technical specifications, regulations, and standards have been completed, with 7 national technical invention patents applied for (2 granted), 3 national utility model patents applied for (1 granted), 5 national computer software copyrights obtained, and 10 publications released. Published 111 papers in core journals, including 44 articles indexed by SCI and EI, with 395 citations from both domestic and international sources. Established one software development base and one protection materials and technology research and development base, and built the first protection technology laboratory among domestic architectural colleges. The project's achievements have been applied to more than 40 major demonstration projects, including the regeneration of industrial heritage in the Expo Park, the renovation of historical buildings on the Bund, the restoration of the Jokhang Palace in Shigatse, and the repair of the Beijing Jinshui Bridge, achieving significant economic benefits, social benefits, and international reputation. During the project research period, received 4 relevant provincial-level or above scientific research awards, 5 provincial-level or above engineering design awards, and 2 international awards. In summary, this project plays a technical support role in the construction, maintenance, and development of national major projects, as well as promoting regional economic culture, ethnic unity, and protecting excellent architectural heritage, greatly advancing the technological progress of the industry.