Smart tourism is a powerful hand to promote the accelerated development of tourism market and the transformation and upgrading of industry. Taking the smart tourism literature included in the Web of Science database during 2011-2022 as the research object, bibliometric methods such as basic statistics, keyword clustering mapping, and sudden value indicators are applied to analyze the research hotspots, frontiers, and evolutionary trends of smart tourism. The results show that smart tourism has become an important and popular research field in recent years, and China's research institutes and scholars have made an eye-catching performance in this field，the research hotspots are gathered in the research of formulating and achieving business objectives in the context of smart tourism, the research of big data acquisition and application, and the research of smart tourism hardware and software and systems，the evolutionary trend shows the proliferation of a single theme to multiple themes and the expansion of theories to practical applications, the frontier trend shows the customer-centered approach to smart tourism，and the evolutionary trend shows the customer-centered approach to smart tourism. The evolutionary trends show the proliferation of single topics to multiple topics and the expansion of theories to practical applications; the frontier trends are customer-centered intelligent operation of tourism, the sustainable development of tourism driven by intelligent tourism, and the enabling mechanism of emerging digital intelligence technology for intelligent tourism; and finally. Some research outlooks are proposed.