Abstract: In order to reveal the diversity and bio-indication roles of above-ground insects in restoration in arid-hot valleys of Jinsha River,an investigation of above-ground insects was carried out by pitfall trappings in 7 plantations in Yuanmou County,Yunnan,China.The results were as follows:① Species composition:2 162 insects individuals were collected,representing 5 orders,7 families,and 24 species in the dry season.Among them,insects of Hymenoptera were the most abundant,representing 98.4% of the abundance and 75.0% of the species richness;While in the rainy season,2 744 insects individuals were collected,representing 12 orders,49 families,and 98 species,insects of Hymenoptera were the most abundant,and the richest species were from Coleoptera.The composition of above-grounding insects in plantations was very different between the dry and rainy season in arid-hot valleys of Jinsha River,it was more complicated in the rainy season.Plantations with the same or similar features showed the same community species composition of above-grounding insects;② Abundance and diversity:for most plantations,the insect abundance and species richness in the dry season were lower than that of the rainy season.In dry season,Azadirachta indica plantation had the highest abundance in insects among all the plantations,and showed significant difference,compared with Jatropha curcas-Leucaena leucocephala plantation,and Azadirachta indica-Acacia glauca or Leucaena leucocephala plantation.In the rainy season,the insect abundance in Azadirachta indica plantation and Azadirachta indica-Acacia auriculiformis plantation was the highest among all plantations,and was significantly higher than that of Eucalyptus spp.plantation.However,the richness of the insect species in Azadirachta indica-Acacia auriculiformis plantation was the highest among all plantations,and was significantly higher than that of Jatropha curcas-Leucaena leucocephala plantation;③ The relationship between above-ground insect diversity and vegetation diversity:they were positively related only in the dry season.Except for Jatrophao curcas-Leucaena leucocephala plantation,the other studied plantations had relative higher biodiversity and better restoration.The community species composition of above-grounding insects differed by different plantations,which was very meaningful in local biodiversity protection and could also be considered as a bio-indicator to the vegetation diversity level.