The corrosion properties of zircon particulate reinforced aluminium 6061 metal matrix composites in different concentrations of hydrochloric acid and sodium chloride was studied by weight loss method. Composites were prepared by liquid melt metallurgy technique using vortex method. The percentage of reinforcement was varied from 3 to 7 wt% in steps of 2%. Specimens were designed according to ASTM standards and subjected to corrosion tests. The corrosion rates of matrix alloy and the composites were determined and compared with each other. The composite was found to be more corrosion resistant than matrix alloy. The decrease in the corrosion rates of composites when compared to that of matrix alloy is due to the passive layer formed in both the corrodents.