Fe modified Cu/Zn/MgO catalyst prepared by co-precipitation- impregnation method is studied for the synthesis of mixed alcohol from syngas, and characterized by BET,H2-TPR,CO-TPD and XRD for assessment of the impact of Fe on the catalyst's structure and morphology. Evaluation results show that MgFe2O4 phase is formed, which promote the dispersion of both the Fe and Mg species when Fe is added. Optimal Fe amount promotes adsorption intensity of CO and facilitates the synthesis of C2 alcohols. The mass ratio of C2 alcohols in total alcohol and space time yield of C2 alcohols increased from 19.6% to 59.7% and 23.3 g/kgcat?h to 45.3 g/kgcat?h respectively, compared with catalyst without Fe when the amount of Fe is n(Fe)/n(Cu)=0.15.