[Objective] Flax blight was one of the flax＇s main disease, which brought huge loss to flax production. This study of flax blight＇s occurrence would lay tile foundation for disease control. [Method] From the different sowing density, application of different fertilizers, soil moisture and continuous cropping conditions, the occurrence of flax blight were analyzed. [Result] Excess nitrogen on Flax wouht increase the inthction rate of anthrax, while applied reasonably with nitrogen, phosphorus and potassium wouht reduce the incidence of blight linen. The more sowing density and soil moisture, the longer cropping period lead to more serious flax blight. [Conclusion] The greater planting density led to serious blight. Excess nitrogen on flax would increase the infection rate of anthrax, while applied reasonably with nitrogen, phosphorus and potassium wouht reduce the incidence of blight linen. The more soil moisture, the greater occurrence of flax blight would happen. Flax blight would increase serious disease.%【目的】亚麻枯萎痛是亚麻主要病害之一，给亚麻生产带来较大的损失。研究亚麻枯萎病发生规律，为病害防治奠定基础。【方法】从亚麻不同播种密度、不同肥料、土壤湿度及重迎茬等备件，分析亚麻枯萎病发生规律。【结果]过剩的氯素将增加亚麻枯萎病感染率，而氮、磷、钾合理搭配施用有利于减轻亚麻枯萎病的发生；播种密度越大、土壤湿度越大、重茬年限越久亚麻枯萎病发生越严重。【结论】播种密度越大，枯萎病发生越严重；过剩的氮素将增加亚麻枯萎病感染率，而氟、磷、钾合理搭配施用，有利于减轻亚麻枯萎病的发生；土壤湿度越大亚麻枯萎病发生越严重：亚麻重迎茬可使枯萎病加重，重茬年限越久发病就越严重。
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