Experiments were conducted tocompare the yield and production benefits of brassica juncea with different fertilization modes in order to provide reference for the implementation of fertilizer reduction and efficiency improvement.Using formula fertilization，slow controlled release fertilizer application，organic and inorganic combined fertilization，three treatments were set up，with farmers' customary fertilization as a control，reducing the total nutrientby 28.7%-42.7%(all refer to the pure nutrient content，the same below).The results showed that the main local formula fertilization mode (20-15-10 formulated fertilization as base fertilizer ，urea seedling fertilizer and 21-6-13 formulated fertilization as spring fertilizer)reduced the fertilizer amount per hectare by 37.7% compared with the control treatment，significantly increased the yield by 12.0%，and increased the benefit by 10465.5 Yuan.In slow and controlled release fertilizer mode(24-12-12 slow release fertilizer was usedasbase fertilizer，high nitrogen and low phosphorus formula fertilizer was usedas spring fertilizer，no seedling fertilizer was applied)，the fertilizer amount per hectare was reduced by 33.8%，the yield was increased by 2.7%，and the benefit was increased by 4947 Yuan.The organic and inorganic combined fertilization mode(applying 7500 kg of commercial organic fertilizer per hectare in combination with the local main formula fertilizer)reduced the amount of chemical fertilizer by 36.1% compared with the control treatment，significantly increased the yield by 11.0%，and increased the benefit by 5290.5 Yuan.It was concluded that the formula fertilization mode had the best effect on reducing weight，saving cost and increasing income，and had the greatest application value.The slow controlled release fertilizer mode is helpful to achieve light and simplified fertilization，but the new fertilizer needs tobe verified by field experiments in large area application.It is necessary to further explore the appropriate amount of organic fertilizer and the range of fertilizer reduction.