An experiment was conducted in Khoy as split factorial based on complete random block design in three iterations. In order to study the effect of iron(Fe), zinc(Zn), and boron(B) on the yield and quality of sugar beet. Experimental treatments included the use of Fe as main terrace at three level (0,75 and 150 Kg/ha) and Zn at two level (0 and 100 Kg/ha) and B at two level (0 and 20 Kg/ha) as secondary terrace. The interaction between Fe and Zn were also significant on the impurity rate of harmful nitrogen and the interaction between Fe and B were significant on the sugar yield and the impurity rate of harmful nitrogen. The interaction of zinc and boron was also significant on the root performance, the impurity rate of harmful nitrogen, and the purity of the raw syrup and Alkalinity. Iron, Zinc and boron had significant effect on Alkalinity and sugar content in malasses. The maximum root yield was obtained by using 100 and 20 kg/ha of zinc and boron, respectively. The maximum rate of purity of the raw syrup was obtained by using of Zinc with 20 kg/ ha of Boron. The maximum rate of impurity in harmful nitrogen was obtained by using 150 kg/ha of Iron and nonuse of Zinc. They highest percentage of Alkalinity was obtained with 150 kg/h iron, 100 kg/h Zinc and 20 kg/h of Boron. The results showed that the quantitative and qualitative yield of sugar beet has increased by using the micro nutrient elements.