In this research study Schiff base (E)-N-(5bromopyridin-2-yl)-1-(4-ethylphenyl) methanimine (BPEPM) synthesized by condensation of 4-ethyl benzaldehyde and 2amino-5-bromopyridine. The Schiff base was characterized by elemental analysis, IR and NMR spectroscopic methods. The corrosion inhibition effect of Schiff base BPEPM on the corrosion of iron in 0.5M HCl was studied by using mass loss method. The mass loss parameter like corrosion rate, inhibition efficiency and surface coverage show that Schiff base BPEPM is an efficient inhibitor for iron corrosion in 0.5M HCl solution. The surface coverage and inhibition efficiency increase with concentration of Schiff base BPEPM increases. In corrosive medium inhibitor instantaneously forms a protecting layer on iron surface and retards the corrosion reaction. The plot log (𝜽/1-𝜽) versus logC (mol/L) show linearity it means adsorption of inhibitor obey Langmuir adsorption isotherm pattern. The inhibition efficiency of inhibitor increases with time duration. In 72-hour time duration Maximum inhibition efficiency (95.7%) is shown towards iron corrosion at highest concentration of inhibitor (5X10 -5 M).