Direct-sown is one of important processes of mechanized and simplified oilseed rapeproduction.To evaluate theinfluence of fertilization managements during the growing season on the germination characteristics of winter oilseedrape，thegerminationexperiment，as well as nutrientcontent，physioligicaltraits(e.g.solube sugarcontent)of seeds harvested fromdifferent fertilization treatments wereconducted.The results showed that the seed nutrient content varied significantly amongdifferent fertilizationtreatments，with greatest variations in seednitrogen(N)andphosphorus(P)content.In comparison withbalanced fertilizationtreatment，the seed N and P content of the unbalanced fertilization treatments decreasedremarkably， ranging from 5.9%～ 16.9% and 0.0%～27.6%，respectively.Additionaly，balanced fertilization signficantly enhancedseedgermination.Compared with the balanced fertilizationtreatment，the seeds of the no -N and no-boren(B)fertilizationtreatment revealed lower germinational potential and normal seedling ratio； and the abnormal seedling ratio of the no-Pfertilization treatment was the highest，which was27.7%.Correlation analysis suggested that seed N and soluble proteincontent was negatively correlated with the poor seedlingratio；the seed germination ratio and germination index were closelyrelated with seedP，B and soluble sugarcontent.Moreover，the ratio of abnormal seedling was negatively related withthe seed P content.Consequently，it is essential to pay more attention to balanced nutrient management during breeding，especially forN，P and Bfertilization，to improve seedquality，and further enhance seed yield of direct -sown rapeseed.