Abstract: The galvanostatic potential oscillations during anodic dissolution of iron in concentrated chloride media were investigated.The minimum currents which caused the oscillations were observed.The periods of oscillations were affected by the rotation rates of the electrode, electrolyte concentration and current densities.It was considered that the form and dissolution of FeCl₂ and Fe(OH)₂ film were the cause of potential oscillations.For the oscillations with stationary electrode, the imposed current densities were inversely proportional to the square root of the periods, which was consistent with the result by analysing the diffusion equation.