The Passive Green Synergy Technology System is guided by the principles of 'four conservation and one environmental protection'. It aims to achieve ecological protection through the full utilization of environmental natural resources during urban development and the entire lifecycle of buildings. The research institute covers a wide range of fields, currently focusing on urban heat island issues, evaluating the environment and energy consumption in cities and residential areas. By establishing an information map, it obtains a microclimate prediction model for urban areas and studies green issues in urban architecture. Research begins with energy-saving and ecological technologies in built environments, developing and practically applying passive technical methods. This includes strategic research using innovative design innovations such as integrated building solar energy, natural ventilation, and daylighting. On the basis of fully exploiting green energy, research focuses on climate-responsive green building performance optimization design and technology. It emphasizes the research innovation of green buildings, exploring human comfort and behavioral patterns in green urban architecture. Assessment and Evaluation Analysis; Combining design innovation with the full utilization of passive technologies, changing the traditional tendency to rely solely on artificial environments for human comfort. This approach involves a combination of active and passive elements, complementing each other in a coordinated manner, forming a green urban building collaborative technology system. The research emphasizes an interdisciplinary and multi-domain joint research system oriented towards city and architectural design, creating strategic consulting and application technologies for green urban buildings with Chinese characteristics, aiming to achieve energy conservation and emission reduction goals.