Abstract:Composite materials are playing a major role in engineering applications. They are used in automobiles, marine, aerospace, sports and various other fields. Nowadays, reinforcing is done with natural fiber in place of synthetic fiber. Natural fibers are cheap and abundantly available. They are nontoxic and can be treated chemically in order to enhance the mechanical properties. Such composite materials are 'Go by Green" and a lot of research is focused on such natural fiber based composites. A few of such research works are reviewed in this paper.