The present disclosure relates to a Cu/Zn/Al catalyst and a method for preparing same. More particularly, the present disclosure relates to a Cu/Zn/Al catalyst including copper particles having high surface area and thus having excellent activity, which is prepared by: preparing a metal precursor solution by dissolving a copper precursor, a zinc precursor and an aluminum precursor in an organic solvent; mixing an aqueous basic solution with the metal precursor solution and precipitating metal particles; and preparing a Cu/Zn/Al catalyst by collecting and sintering the precipitated metal particles, and a method for preparing same.