Abstract: Rapeseed is major oilseed crop of Nepal but its yield is limited due to various factors and one of the major limiting factors is leaf blight disease caused by Alternaria brassicae (Berk.). An experiment was conducted at Oilseed research Program, Nawalpur, Sarlahi, Nepal during two consecutive years viz. 2019 and 2020 to screen the rapeseed genotypes against alternaria leaf blight disease.