(移动)互联网时代和大数据时代,数据的外延、广度和体量不断扩大,非结构和半结构化的数据也可以用于分析与研究。数字足迹表征用户行为,由于分享心理和研究者无涉,其可信度高,成为研究消费者行为的重要资料。数字足迹在旅游研究中应用广泛,但同质化严重。对数字足迹的概念、类别及研究做一综述有助于廓清现有研究,为今后研究奠定基础。 (Mobile) In the era of the Internet and Big Data, the data extension, breadth and volume are expanding. Unstructured and semi-structured data can also be used for analysis and research. Digital footprint characterizes user behavior, which is an important source for researching consumer behavior because of its high level of credibility because of sharing psychology and investigator’s non-involvement. Digital footprint is widely used in tourism research, but its homogeneity is serious. A review of the concepts, categories and research of digital footprints helps to clear existing research and lay the foundation for future research.