The subject of our study is the success of light-trap catch of some insects (Coleoptera, Lepidoptera and Heteroptera) in Relation to the Altitude of the Tropopause. Groups were formed according to the height of the tropopause. The relative catch values of the investigated insects were grouped according to the heights of tropopause every day. Then we summarised, averaged and showed these values. We found a strong positive correlation between all of the investigated species and the altitude of tropopause.