Studying the impact of tourism on vegetation has an important practical significance for the ecological management of scenic spots. The evaluation system was constructed from landscape importance value (LIV), species diversity (SD), proportions in community structure (PCS), negative species proportion (NSP), proportion of species in close proximity to human beings (PS), and tourism influencing index (TⅡ) and was applied to Mount Wutai, which includes four layers and 27 specific indicators. It shows that (1) with an increase in distance in different directions, tourism activity decreases, and the vegetation landscape changes from residential, commercial, or artificial vegetation areas to an area of herbs, an area of the shrubs and herbs, and an area of trees, shrubs, and herb, in turn. Accordingly, LIV, SD, PCS, NSP, and ecological effect value (EIV) increase with distance, while PS and TⅡ decrease. (2) The landscape characteristics of different vegetation types are obviously different. For the characteristic values of LIV, SD, PCS, NSP, and EIV, the area of herbs < the area of shrubs and herbs < the area of trees, shrubs, and herbs. As for the characteristic values of PS and TⅡ, the area of herbs > the area of shrubs and herbs > the area of trees, shrubs, and herbs. Different populations have biological and ecological characteristics in responsing to tourism disturbance, in which Populus cathayana is relatively unique. (3) From Taihuai town, the spatial pattern of tourism development is the result of likeness between scenic spot distributions and topographic factors, and vegetation landscapes have obvious ecological responses. The number of samples in different directions indicates the degree of tourism development. The degree of development was the highest to the south and northeast; the second highest to the north, southeast, southwest, and east; and the lowest to the northwest and west of the town. (4) The whole region is divided into four areas by the EIV. Area I is the temple, residential, and commercial areas; Area Ⅱ is the area of herbs; Area Ⅲ is the mixture area of trees, shrubs, and herbs; and Area IV is the coexistence area of trees, shrubs, and herbs.