The so-called tourism big data refers to the data generated by practitioners and consumers in the tourism industry, including management or business data generated by scenic spots, hotels, travel agencies, tour guides, tourists and tourism enterprises, management or business data generated by the tourism industry, basic resource information base of the tourism industry, internet data, tourism macroeconomic data, tourism meteorological and environmental protection data, traffic data and online public opinion data, among which the data of tourists is the most important and has the greatest application value.