This work comprises of fabrication of biodegradable polymer composite material samples, followed by the analysis of its mechanical properties. The objective of this work is:  To fabricate composite samples made up of natural rubber with natural fibre.  To compare the properties of composite samples on the basis of different weight fractions and length of the fibres and to propose the optimum fibre aspect ratio.  Best results from the analysis will be taken and compared with the other available synthetic and non biodegradable composites. The present work aims at investigating the prospect of using Phormium Tenax (New Zealand Flax) fibre as reinforcement in natural rubber matrix. Research work is going on with other natural fibres like coir, banana, flax etc. In order to achieve this major objective several fundamental investigations on the fibre and its composites have been undertaken.Currently the fibre is being utilized for the preparation of ropes, cordages, gunny bags etc. These fibres if put to better use, as reinforcement in polymers will definitely contribute to the development of the economy of the country and will open up new avenues for our natural resources.