Abstract: Based on the field survey of flowering plants in three wetland parks in Kunming, the relationship between flowering plants and butterfly diversity in Kunming wetland park throughout the year was discussed. The results showed that the species richness and abundance of butterflies were not only affected by the seasonal changes, but also by the flower richness and color of flowering plants. In terms of time series, temperature, seasonal changes, flowering plants and plant configuration were important factors to maintain butterfly species diversity. From the perspective of the park as a whole, reasonable allocation of flowering plants and plant colors could promote the diversity of butterflies and the development of biodiversity in urban wetland parks.