Abstract: Insect diversity is an important part of wetland biodiversity, which is closely related to the vegetation in wetland ecosystem. Many environmental factors affect wetland insect diversity, and vegetation succession is the key factor. Due to the sensitivity to wetland environmental change, insect diversity is gradually applied as an indicator for the monitoring and evaluation of wetland quality, and crucial for the study of wetland conservation and restoration. This paper summarized the research progress in the vegetation succession, dominant insect groups, and variation patterns and affecting factors of insect diversity on different wetland types. The application of insect diversity as an indicator for wetland quality monitoring and evaluation was discussed, and the research gaps and priorities concerning wetland insect diversity were pointed out.

Key words: nonstructural carbohydrates, branch, leaf, Juglans mandshurica, Ulmus japonica, up-scaling.