In order to study the complex relationship between soil nutrients and mineral nutrients in jujube orchards in Xinjiang，the optimization scheme of soil nutrient factors was formulated，so as to provide reference and technical guidance for scientific fertilization and precise management of jujube orchards in Xinjiang. The mineral element contents of jujube fruits and soil nutrient contents in 20 jujube orchards of 9 main producing counties and cities in Xinjiang were determined. The important soil nutrient factors affecting the mineral nutrients of jujube fruits were analyzed and screened out by using R language and SIMCA multivariate statistical software. The linear programming equation was established by using Lingo software to explore the optimization scheme of soil nutrient factors when the mineral nutrients of jujube fruits were optimal. The results showed that the soil of jujube orchard in the study area was alkaline soil，and the contents of soil organic matter， alkali hydrolyzable nitrogen and available phosphorus were extremely significantly different among the sampling points. There was significant difference in soil available potassium content among different sampling points. There were extremely significant differences in the contents of soil exchangeable calcium，exchangeable magnesium，available sulfur，available boron and available zinc among different sampling points. There were significant differences in the contents of soil available iron， available manganese and available copper among different sampling points. The mineral nutrition of jujube fruit was the result of the interaction of soil nutrient factors. The results of partial least squares regression analysis showed that the maximum indexes of soil nutrients affecting the nitrogen，phosphorus，potassium，calcium，magnesium，sulfur，boron，iron， manganese，zinc and copper contents of jujube fruits were soil available potassium，available boron，alkali-hydrolyzed nitrogen，organic matter，available boron，available iron，available boron，available manganese，organic matter，pH value and available zinc. The same soil nutrient index affected different fruit mineral element contents，and a mineral element of fruit was affected by different soil nutrients. Different soil nutrients had different effects，among which soil organic matter and available boron contents had a greater impact on fruit mineral elements. The optimal scheme of soil nutrient in Xinjiang grey jujube orchard was:When pH value 7.30-8.46，organic matter 23.24-59.73 g/kg，alkali hydrolyzable nitrogen more than 63.75 mg/kg，available phosphorus 92.40-164.67 mg/kg，available potassium 223.25-372.47 mg/kg，exchangeable calcium 437.00-1392.00 mg/kg，exchangeable magnesium 124.87 mg/kg，available sulfur 412.66 mg/kg，available boron 1.66-6.05 mg/kg， available iron 12.21-16.15 mg/kg，available manganese 8.88 mg/kg，available zinc 0.45-1.41 mg/kg，and available copper 2.35-3.86 mg/kg，the mineral element contents of grey jujube fruit were the best. In the fertilization management of jujube orchard in Xinjiang，we should pay attention to the scientific management of water and fertilizer，timely increase the application of organic fertilizer，adjust the soil pH value，improve the contents of exchangeable calcium，exchangeable magnesium，available manganese and available zinc in the soil，and choose the scientific fertilization ratio according to local conditions.