Leaf yellowing caused by iron(Fe)deficiency is one of the most important limiting factors for high yield and high quality production of Jujube.In order to provide a theoretical basis for increasing yield and improving quality of golden thread jujube production in Laoling,Fe fertilization experiment was conducted to study the impact of injection different concentrations of FeEDTA solution in tree trunk on nutrient content,fruit development,yield and quality of golden silk thread jujube.Four treatments were set up,included nonferrous basic nutrient solution,0.2 g/L FeEDTA basic nutrient solution,0.3 g/L FeEDTA basic nutrient solution and 0.4 g/L FeEDTA basic nutrient solution.The preliminary results showed that the trunk injection of different concentration of FeEDTA solution improved the growth and fruit development of jujube.The 0.2 g/L FeEDTA basic nutrient solution treatment significantly promoted the growth and development of fruit, and increased the ratio of transverse diameter, longitudinal diameter, single fruit weight and soluble sugar content by 6.6%, 4.2%, 6.2% and 7.9% respectively.The 0.3 g/L FeEDTA basic nutrient solution treatment significantly increased the proportion of high quality jujub.Thus,trunk injection of Fe fertilizer was a useful ways for high yield and high quality golden silk jujube production.