Abstract: Fuel efficiency and emission gas regulation of automobiles are two important issues. To fulfill this problem the automobile industries are trying to make new vehicle which can provide high efficiency with low cost. The best way to increase the fuel efficiency is to reduce the weight of the automobile. The weight reduction can be achieved primarily by the introduction of better material, design optimization and better manufacturing processes. The achievement of weight reduction with adequate improvement of mechanical properties has made composite a very good replacement material for conventional steel. Out of many components of automobile, the leaf spring which is required to carry out the whole weight of the vehicle is the best option for replacement of steel material by composite material. FEA analysis would be conveniently used for the analysis. Methodology for the analysis and on the composite material study is carried through literature.

Keywords: Leaf spring, FEA Analysis of leaf spring.