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The rapid development of tourism promotes the study of tourism industry. It accumulates and summarizes a lot of relevant knowledge and theories. This paper takes the research literature of tourism industry retrieved and collected on the Web of Science as the research object. The research tool is the Citespace.5.6 R3 Software. The author combined data analysis and literature reading to summarize the knowledge of tourism industry research in the past five years from 2016 to 2020. Through the research, we get some knowledge and conclusions about the tourism industry research. We hope that these results will provide some basic references for travel industry practitioners and scholars.