Lishan Mountain is located in the eastern of Zhongtiao Ranges bordering Qinshui county, Yangcheng county, Yicheng county and Yuanqu county in Shanxi. It is at 35°16′-35°27′N, 111°51′-112°30′E, and belongs to warm-temperate continental monsoon climate zone. Lishan Provincial Natural Reserve was authorized by Shanxi Provincial Peoples Government in 1983, and Lishan National Natural Reserve was designated by the State Council of the Peoples Republic of China in 1988. It is the largest natural reserve (248km2) and with the richest wildlife resources in all natural reserves in Shanxi. Shunwangping subalpine meadow is at 2358m above sea level and is the highest peak in Lishan Natural Reserve. It consists mainly of xero-mesophyte or mesophyte, which includes mainly Festuca rubra, Carex subpediformis, C. heterostachya, Poa annua, Fragaria orientalis, Sanguisorba officinalis, Ranunculus japonicus, Polygonum viviparum, Gentiana macrophylla et al. Because of the abundant natural and cultural scenery, it has increasingly attracted tourists. With the rapid development of tourism, however, its vegetation resource has been damaged to some degrees owing to the unreasonable exploration and the imperfect management. The quadrats were set from timberline (2100m) to the top peak (2358m) in Shunwangping subalpine meadow. Four transect belts were parallel each other and were parallel with the traveling path. Following a gradient of decreasing tourism disturbance intensity, each transect was 0m, 4m, 8m and 12m, respectively, away from the traveling path. Each transect included 32 1m×1m quadrats, which were set up at 100m intervals. A total of 128 quadrats and 88 species were recorded in the field. By using richness indexes, evenness indexes and diversity indexes,the change tendency and regularity of the plant diversity of communities in Shunwangping subalpine meadow influenced by tourism interference were studied, along with ANOVA. The results were as follows: (1) The number of the families, genera, and species of the different transects increased with the increase of the distance away from the tourism path. The number of species in Ranunculaceae alternated more than that in Rosaceae, Compositae and Gramineae. (2) In spite of the variation of the relative coverage, the relative height and the relative density of main dominants were not significant (p>005), the regularity of variation showed that the distance away from traveling path corresponded to higher relative coverage, height and density of the dominant species. However, the change trend for the relative coverage, the relative height and the relative density of the companion species showed inverse trend. For example, the Polygonum aviculare distributed only in Transect I, and was absent in Transect II, Transect III, Transect IV. (3)For the functional groups of life form, the permanent plant was accounting for about 80% in the total, which was more than that of therophyte and shrub (accounting for 20%) totally. With the increase of tourism interference, the proportion of therophyte raised, the proportion of permanent plant inclined, and the proportion of shrub was constant relatively. (4) The result of diversity indices indicated that the richness indices and the diversity indices raised, and the evenness indices declined with the increase of the distance away from the traveling path. The difference was not significant (p>005)by using ANOVA. It suggests that the tourism interference has not resulted in serious influence on plant diversity in Lishan subalpine meadow. Based on the disturbance degree of tourism on plant diversity in Lishan subalpine meadow, some management strategies are proposed for the development of tourism and for plant resource conservation and its utilization.