'Qinglei No.1'is a new big top-styled bitter gourd F1 hybrid developed by hybridization of inbred lines'D-1-3'as female parent and inbred lines'Y-3-6'as male parent.The plant grows vigorously,and big top-shaped fruits,dark green rind with alternating round and stripe tubercles.The fruits are 11.4-12.6 cm in length,10.3-11.3 cm in width,and 1.15-1.16 cm in thickness.It is a medium maturing variety which takes about 77 days for first harvesting after sowing in spring,and about 56 days in autumn.The variety's whole growth duration lasts for about 110 and about 99 days in spring and autumn seasons respectively,and its harvest period lasts for around 33 days in spring and 43 days in autumn.The single fruit weight ranges from 342.3 to 420.3 grams,and 90.08%-92.10%of the harvested fruits are marketable.This variety exhibits a moderate resistance against Fusarium wilt and has a yield of 30 t·hm-2 approximately.It is suitable for spring cultivation in Guangdong Province.