Abstract: The evolution of the corrosion process has been investigated on the surface of galvanized iron (GI) strips subjected to acid rain simulation. Scanning electron microscopy, electron dispersive x-ray and mapping prove that corrosion has occurred in all GI strips samples immersed at sulfuric acid solution having pH of 3.0, 3.5, 4.0 and 5.6 respectively. The pH measurements done on all sulfuric acid solution show that corrosion process terminated seven days after the samples are immersed in acid solution. This is the first time that growth of corrosion on GI strips subjected to simulated acid using sulfuric acid solution has been explored.