This work intends to investigate the inhibition behaviour of 2-butine 1,4diol and potassium sodium tartrate and their synergistic effects on 3003 aluminium alloy corrosion in 0.5% NaCl solution.Experiments were carried out by electrochemical impedance spectroscopy(EIS)and Tafel polarization method in a three-electrode cell. It was concluded that the inhibition efficiencies increased with an increase in the concentrations of inhibitors. For 2-butinel,4diol and tartrate salt,the optimum in the inhibition efficiency,at room temperature and neutral pH,was observed for concentrations close to 10~(-3) mol/L and 1.5×10~(-3)mol/L,respectively.The electrochemical results illustrated that 2-butinel,4diol and tartrate salt,have significant synergistic inhibition effects on corrosion of 3003 aluminium alloy in 0.5% NaCl solution.The optimum ratio of concentrations for tartrate to alcohol was 2:1. This work intends to investigate the inhibition behavior of 2-butine 1,4 -diol and potassium sodium tartrate and their synergistic effects on 3003 aluminum alloy corrosion in 0.5% NaCl solution. Experiments carried carried by electrochemical impedance spectroscopy (EIS) and Tafel polarization method in It was concluded that the inhibition efficiencies increased with an increase in the concentrations of inhibitors. For 2-butinel, 4diol and tartrate salt, the optimum in the inhibition efficiency, at room temperature and neutral pH, was observed for concentrations close to 10 ~ (-3) mol / L and 1.5 × 10 ~ (-3) mol / L, respectively.The electrochemical results illustrate that 2-butinel, 4diol and tartrate salt, have significant synergistic inhibition effects on corrosion of 3003 aluminum alloy in 0.5% NaCl solution. The optimum ratio of concentrations for tartrate to alcohol was 2: 1.