Abstract: Abstract：The effects of different co operant use of boron and phosphorus on the growth and quality of Brassica napus L.through were conducted through the pot experiment. The results showed that an adequate supply of boron and phosphorus enhanced the content of chlorophyll, increased the biomass of Brassica napus L. and optimized the R/T. Among all experimental treatments, CBF3-L had a best quality, which increased the reductive Vc content，sugar content and the ratio of sugar and acid content. The optimum amount of fertilizers on Brassica napus L. was P2O5 0.1g/kg soil and B 0.005g/kg soil, which promoted the growth and quality of Brassica napus L. significantly.