Using ground-source heat pumps to replace traditional boilers and single-cooled chillers for heat supply (cooling) has become one of the important measures to save energy and reduce carbon dioxide emissions in construction projects. However, due to site limitations in densely urban areas, the utilization of soil source resources is limited. The deterioration of the soil environment caused by the imbalance of heat extraction and release from soil sources, as well as the instability and inefficiency during the use of ground-source heat pumps, have become prominent technical problems in today's construction industry. The project adopts a combination of industry and research model, relies on actual engineering projects, uses computer simulation and energy efficiency monitoring technology to establish a ground source heat pump simulation and analysis platform, and builds a variety of applicable and reliable composite ground source heat pump systems for building energy conservation., the main achievements and innovations achieved are: (1) Using the ground-source heat pump simulation and analysis platform, the impact of buried pipe spacing, buried pipe depth, system configuration form and operation mode, and the ratio of cumulative heat release to heat extraction on soil heat accumulation was studied and analyzed. For the first time, it was proposed that it is suitable for Shanghai. Drilling spacing of vertical buried heat exchange pipes;(2) In swimming pool type buildings, a composite energy system of ground source heat pump unit + air source heat pump unit + gas boiler was proposed for the first time. Energy efficiency monitoring and operation control technology were used to analyze the applicability and reliability of the monitoring system, realizing the successful use of composite soil source heat pump system in energy system renovation of swimming pool type buildings;(3) Innovatively proposed an integrated system of air conditioning and ground source heat pump systems with independent temperature and humidity adjustment, and used computer simulation technology to analyze the key technologies of the integrated application of the system (fresh air treatment process, dry fan coil selection, anti-condensation control, etc.), achieving the reliability and stability of system operation. The key technologies of the project have been successfully applied in many projects such as the Shanghai Pudong Natatorium Energy System Reconstruction Project, Hongqiao Industrial Building, and Shanghai Pujiang International Plaza, reducing the energy consumption and carbon dioxide emissions of buildings and improving building quality. Some projects have been awarded the national green star certification and evaluation mark, achieving significant economic, environmental and social benefits. Based on the research results of the project, he applied for 2 invention patents and obtained 2 utility model invention patent authorizations; he published 6 papers in domestic academic journals and was cited 5 times in total. The project results have been incorporated into the newly compiled Shanghai City Engineering Construction Technical Specifications, making it a common technology to the whole society and having a far-reaching impact on promoting the technological development of the industry. The novelty research conclusions of the Shanghai Science and Technology Novelty Research Consulting Center of China Academy of Sciences on the scientific and technological achievements of this project show that the soil thermal accumulation simulation and analysis platform established by the project has comprehensively analyzed the spacing of buried pipes, buried pipe depth, operation mode, and system configuration form, and the research results have reached the domestic leading level. The level search report issued by the Shanghai Science and Technology Novelty Consulting Center of China Academy of Sciences concluded: The research on the integrated technology of air conditioning and ground source heat pump with independent temperature and humidity regulation pays more attention to practicality, and determines the independent control of temperature and humidity of solution dehumidification and the combination of high-temperature cold water underground pipe ground source heat pump. The air conditioning system form demonstrates the applicability of this air conditioning method in public buildings in hot summer and cold winter areas and its significant energy-saving effects. This project is at the leading level in China. The acceptance opinions of scientific research projects organized by Shanghai City Science and Technology Commission show that the research results of the project have reached the domestic advanced level, and the research results are innovative and practical. The research conclusions on the heat accumulation of soil heat pumps provide important technical support for the preparation of Shanghai City's "Technical Regulations for Ground Source Heat Pump System Engineering." Based on engineering practice and research, the research team proposed the "Design Guidelines for Energy-Saving Renovation of Natatorium Type Sports Buildings in Shanghai (Ground Source Heat Pumps)" and the "Application Guidelines for Integrated Technology of Air Conditioning and Ground Source Heat Pumps with Independent Temperature and Humidity Regulation" for future energy-saving renovations of such buildings.