Abstract: ‘Longyuanyijian’cucumber is a newly bred Fl hbrid which was developed by crossing H-13 as female parent with C-27 as male parent. This hybrid is a infinite growth type with all female，early maturity，strong growth potential，dark green leaves，and high resistance to downy mildew，resistance to powdery mildew and wilt. Mature fruit is medium green，lustrous，rod-shaped，non-prickly，spiny，less thorny nodules，light green pulp，no bitterness，parthenocarpous. The single fruit weight is about 140 g with excellent quality，good taste. It yields more than 65 t • hm-2.