Field experiments on winter oilseed rape were conducted at 15 sites in main producing areas during 2012~2013.The objective of this research was to study the effects of applying slowreleased special formula fertilizer(N-P2O5-K2O-B 20-7-8-02,and other midnutrients and minnutrient 5%)on oilseed rape,and then to provide the basis for the promotion and improvement of single fertilization for winter oilseed rape.The results showed that both the application of conventional fertilizer and formula fertilizer on winter oilseed rape could significantly increase the yield,net profit and nutrients uptake.Compared with conventional fertilizer treatment,when the total amount of nutrients was reduced and fertilizer single application was used,yields of more than 85% of the test points in the slowreleased special formula fertilizer treatments were increased or equal,with that the average yield,increase rate and the average increase income was 133 kg/hm2,8.1% and 1 624 Yuan/hm2 respectively.Nutrient uptakes were obviously improved in formula fertilizer treatments,with the average accumulation increased by N 10.8 kg/hm2,P2O5 2.1 kg/hm2,K2O 7.9 kg/hm2.It showed that the average fertilizer contribution rate to yield and agronomic efficiency were 51.8% and 5.5 kg/kg,respectively,which were both higher than those of conventional fertilizer treatment.On the whole,the application of slowreleased special formula fertilizer on winter oilseed rape could significantly increase the yield and net profit and it could be promoted and applied as one of simplify fertilization techniques for winter oilseed rape.