The shopping mall carries out digital transformation and promotes intelligent operation; The shopping center tries to integrate online and offline, embracing the cloud business model; The art gallery explores immersive scenes and creates a new experience... In Xinjiekou Business District, Nanjing, Jiangsu Province, the construction of smart business districts and smart stores has promoted the continuous innovation of consumption scenes and brought new experiences to consumers. Not long ago, the Ministry of Commerce released the Announcement on the Review Results of the First Batch of National Model Smart Business Districts and National Model Smart Stores, initially determining the first batch of 12 national model smart business districts and 16 national model smart stores. Nanjing Xinjiekou Business District was selected as the national demonstration smart business district, and Suning E-shop Xinjiekou Store was selected as the national demonstration smart store. In Suning E-shop Xinjiekou Store, the new interactive experience mode integrates digital system, technology and fashion elements, upgrades the traditional retail stores in terms of infrastructure, sales mode and scene experience, and improves the whole process scene, digital and intelligent experience of consumers entering, shopping and leaving the store. Compared with that before the digital transformation, the average monthly customer flow to the store has increased by 110%. Smart business district is an important part of urban business system, and also a carrier to promote circulation innovation and cultivate emerging consumption. With big data platform as the core, the smart business district uses modern information technology to establish a smart application service system for consumers, commercial enterprises, operating institutions and government departments. It has the functions of data acquisition, consumption services, traffic guidance, information push, mobile payment, logistics distribution, public services, operation management, etc., and has realized the integration and complementarity of business types, intelligent and efficient facilities, and convenient and complete functions. In order to better guide the construction of the smart business district, the Smart Business District Construction Guide (Trial) issued by the Ministry of Commerce clearly states that in principle, the smart business district is built and managed by the business district operating agencies or relevant local government departments, with the joint participation of all kinds of subjects in the business district. Focusing on the needs of consumers, commercial enterprises, operating agencies and government departments, and in accordance with the construction idea of "one platform, multiple access, and four services", Build the overall architecture of smart business district. "One platform" refers to the big data platform of the smart business district. It is the core hub to connect the underlying data and upper applications of the smart business district, and an open platform to support the smart operation and management of the business district. It includes a data center and intelligent facilities, data sharing, and security assurance systems. "Multi port access" means to establish a standardized and universal open data interface, connect with information platforms such as commercial enterprises, urban management and public convenience services, as well as special application service providers such as location services and information services, and support multiple access channels such as mobile APP, applet, official account, PC/mobile website, etc. "Service Quartet" means to establish four categories of smart application service systems for consumers, commercial enterprises, operating institutions and government departments, deepen data application, achieve accurate data collection and analysis, provide efficient and convenient services, and create a smart business circle scene of "visible, connected, found, used, and managed". Experts believe that the smart business district in the future will take convenience and benefit of the people as the guidance, take into account the needs of various market subjects in the business district, comprehensively use modern information technology, carry out digital empowerment of the business district, enrich consumption experience, improve the service management level of the business district, and better