Sort out the development trend of refined street design at home and abroad, based on the trend of street development and the practical needs of Shanghai. Take the streets of Xuhui District in Shanghai as empirical samples and propose feasible design guidelines. Through the practice of street space construction, we have summarized our experience, identified problems in multiple dimensions such as system, function, style, and implementation, learned from advanced experience, connected with higher-level guidance, proposed refined street design methods, guided future construction management, and formed application scenarios. The overall goal is to improve the style and environmental quality of the neighborhood comprehensively, create a benchmark area for refined management, adhere to the concept of people’s cities, and establish comprehensive, refined, and people-oriented control standards. The core concept comprises five key points: balanced zoning, spatial integration, refined humanistic orientation, quality improvement through simplification of complexity, and collaborative governance. Specifically, it includes two aspects of guidance: overall guidance based on road classification, and refined guidance proposed through mandatory settings, optional settings, and characteristic elements. Based on the development needs of urban areas, three major systems, six subcategories, and 18 elements are proposed for refined design guidance, emphasizing the guidance of slow traffic systems and street facade elements; Elaborate on the practical application of theoretical methods through actual projects. This study has identified key points for the subsequent refinement of street construction, improved the efficiency of construction management, ensured the diverse needs of the population, and paved the way for a new approach to developing street space through phased urban renewal.