Farmers use more and more insecticide/pesticide to control sucking insect pests and due to this, more toxic effect is found on natural enemies and so also on environment, hence attempts were made to study on Management of sucking insect pest complex of Bt cotton by Integrated pest management. The population of sucking pests were recorded in both IPM and Non IPM plots. Weekly data collected on population count of various insect pests for the season, were pooled and presented in table forms. The population of sucking insect pests viz. jassid, whitefly and thrips have been recorded at fortnight interval during the growing season and was presented as average population in IPM and Non-IPM plot. The perusal of observations in the present study concluded that, in case of Jassid, the minimum population of Jassid (2.05/3leaves) was recorded in in IPM plot and it was 21.76% less than non-IPM plot. In case of whitefly, minimum population of whitefly (13.22/3leaves) was recorded in in IPM plot and it was 19.66/3leaves in non-IPM plots being 32.76% less in IPM plot than non-IPM plot. Regarding thrips, the minimum population of thrips (12.46/3leaves) was recorded in IPM plot and 17.12/3leaves in non-IPM plot which was 27.22% less in IPM than non-IPM plot.