Smart tourism uses new technologies such as cloud computing and Internet of Things to actively perceive information such as tourism resources, tourism economy, tourism activities and tourists. Through the Internet/mobile Internet and with the help of portable terminals, people can get to know this information in time, arrange and adjust their work and travel plans in time, so as to achieve the effect of intelligent perception and convenient use of all kinds of tourism information. The construction and development of smart tourism will eventually be reflected in four aspects: tourism experience, tourism management, tourism service and tourism marketing. How to build a tourism big data center needs to be built in the following aspects: 1, tourism big data, realize the comprehensive and in-depth application of data resources, and provide decision-making and consulting services for the government, enterprises and tourists. 2. Through the construction of database and the overall framework of data resource layer, application support layer and information service layer (presentation layer), we can realize the reception, integration, analysis and display of multi-source data, and support application scenarios such as precise marketing, operation optimization and information inquiry centered on government, enterprises and the public. 3. Build an open * * * sharing system, build a hierarchical open system of data platform, provide data information services to government departments, enterprises and institutions, and the public, and realize the * * * sharing of tourist flow, tourism consumption and tourism service data. References: