Corrosion of the reinforcement in concrete structures had been realized to be a serious problem worldwide in the 60s & 70s & the number of damages still increased considerably in the 80s. Corrosion in steel reinforcement is one of the most significant factors in the deterioration of Reinforced Concrete Structures Rebars Corrosion carbonation of Concrete & Chloride Attack Affects almost 50% The Durability of concrete structures. Earlier studies Indicated the Reinforced Concrete structures Remain durable for the whole of their design life, Approximately more than 60 years, Even maintenance-free. The purpose of this study is to evaluate and compare the relative merits of the two coating systems for reinforcing bars in concrete. Also, this study helps to know the nature and characteristics of both epoxy coated and Zinc Coated Steel for use as reinforcement in concrete. Also presented is an overview of the results from recent experimental work on the comparative corrosion behavior of uncoated Steel, epoxy-coated steel, and Zinc Coated Steel in concrete.