（1.Vegetable Institute,Shijiazhuang Academy of Agriculture and Forestry Sciences，Shijiazhuang，Hebei 050021；2.College of Mathematics & Statistics,Hebei University of Economics and Business，Shijiazhuang，Hebei 050061）
The Chinese onion male sterile materials which were found in the traditional variety ‘Qingye No.1’ were used,to select the stable male sterile line 353A and its maintainer line 353B by the backcross breeding method,the male-sterile rate and the degree of sterile plant were both approach 100%, and using 353B to pollinate 353A could make it normal seed. The hybrid combinations with 353A as female parent showed strong resistance and yield advantage.The breeding of new male sterile lines laid a foundation for the innovation of Chinese onion germplasm resources and heterosis utilization.