Under the background of tourism information, concepts such as digital tourism, virtual tourism and smart tourism have emerged in the tourism industry. It is necessary to analyze the similarities and differences of the three concepts. Although these three concepts are the products of the information age, their background, involved subject, technical support system, research level, application scope, tourism mode, tourism cost, involved tourism elements, the impact on the tourism environment and other aspects are all different. In the process of the development of information tourism in the future, tourists should be taken as the center to integrate tourism information resources and strengthen the construction of intelligent tourism.