Through the different fertilization treatments in the drip irrigation condition, and using 6-years-old jujube as test object, the effects of different ratio of nitrogen, phosphorus and potassium on the yield and quality of jujube in arid area of south Xinjiang was studied. The results showed that the use of balanced fertilization could increase the yield of jujube, and increase the content of soluble sugar and VC content in fruit of jujube, thus improve product quality and increase benefit. When N, P, K were applied at 35, 5~17, 20 kg/667m², the jujube commodity fruit rate, fruit soluble sugar and VC content were significantly improved.