【Aim】 The purpose of this study is to clarify the distribution pattern of exotic plants in the lakeside area of Dianchi and its main human activity influencing factors, to provide data support for the management of exotic plants in the region, to prevent them from becoming invasive species, and to better protect the Dianchi ecosystem. 【Method】 A combination of sample method and line survey was used to obtain information on the distribution of exotic plants. The relationships between the abundance and density of exotic plants and the factors influenced by human activities and native plants were explored by cluster analysis and stepwise regression analysis. 【Result】 (1)The distribution patterns of the richness and density of exotic plants in the lakeside area of Dianchi were basically the same; the richness of exotic plants was relatively high on the east and north shores, and relatively low on the west and south shores. The variability of exotic plants in each lakeside wetland park was large, especially the largest differences in the composition of exotic plants between Jinning South Dianchi National Wetland Park, Gudian Fine Wetland Park, Haidong Wetland Park and other lakeside wetland parks. (2) The size of the lakeside wetland park was the main factor influencing the abundance and density of exotic plants. (3) The abundance of exotic plants was positively correlated with the abundance of native plans. (4) The results of the canonical correspondence analysis showed that the three ordination axes explained 59.87% of the variation in species composition of exotic plants in the lakeside area of Dianchi. Length of major roads, traffic density and area of lakeside wetland parks were the main variables determining the spatial distribution pattern of exotic plants. 【Conclusion】 Human activities affected the spatial distribution of exotic plants in the lakeside area of Dianchi. In areas with a high abundance of native plants, the abundance of exotic plants was also high. While controlling exotic plants, it is also necessary to guard against the risk of increasing exotic plants due to human activities.