Abstract: The aim of this study was to explore the temporal and spatial characteristics of the waterborne insect community in the wetlands along the shores of Dianchi Lake, as well as its relationship with environmental factors, and to provide theoretical support for the restoration of lakeshore wetlands. From August 2018 to March 2019, quarterly surveys were conducted on the waterborne insects and water quality of five wetlands in four regions around Dianchi Lake. The dominance index and four species diversity indices were used to analyze the characteristics of the waterborne insect community, and Pearson correlation analysis was used to investigate the relationship between the community and environmental factors. A total of 69 taxonomic units were recorded, covering 31 families and 7 orders of waterborne insects. Among them, the highest numbers of individuals and taxonomic units were observed in the order Diptera, accounting for 59.07% and 47.84% of the total individuals and taxonomic units, respectively. One taxonomic unit each from the families Corixidae, Polypedilum sp., and Chironomus sp. were identified as the dominant taxonomic units in the wetlands. The waterborne insect community in the wetlands was found to be most complex in spring, followed by summer and winter, and relatively simple in autumn. In terms of spatial distribution, the waterborne insect community on the east and northeast shores of Dianchi Lake was the most complex, followed by the south shore, while the west and north shores were relatively simple. Correlation analysis indicated that pH, dissolved oxygen, and chemical oxygen demand were key water environmental factors significantly correlated with the waterborne insect community in the wetlands along the shores of Dianchi Lake.