In this study，16 white grain cultivars(lines) were identified and evaluated for their resistance to fusarium wilt by long-term disease nursery. This provides reference for the application and extension of high-quality and special white seed cultivars(lines)in flax production. The results showed that 79073 cultivars(lines)with high resistance to fusarium wilt and 3.14 % of wilt rate through field investigation. Three cultivars(lines)with moderate resistance to fusarium wilt were QS9，8012-2-3，NY2015 and the mortality rate was 7.99%～18.45%. At the same time，the incidence of fusarium flax in different growth stages found that fusarium flax could occur in the whole growth stage. However，it is more severe in the late reproductive period. The incidence ratio of flowering and fruit stage reached 70.24% in the whole growth period.