Insects are come under Phylum Arthropoda and class Insecta. There are three body parts of insect, the head thorax and abdomen. The present research work was conducted to investigate the effectiveness of Light trapping system for insect diversity and distribution in Tehsil Baffa Pakhal, District Mansehra K P. The surveys for insect trapping was carried out from June 2022 to September 2022. A light trap were used for four months (from June 2022 to September 2022) for insect diversity and distribution in Tehsil Baffa Pakhal District Mansehra Khyber Pakhtunkhwa Pakistan.  A total of 161 specimens were trapped. Which were identified into three orders (Order Blattodea, Order Coleoptera and Order Diptera), four families, seven Genera and seven species. Out of these three orders the order Coleoptera were recorded with the highest number of specimens and order Diptera were recorded with the lowest number of specimens. Light trap were found effective for nocturnal insects. 

Index Terms-Coleoptera, Diversity, Insect, Light trap.