There is a huge need for new materials in all fields of engineering, this invites the development of new ¬materials which suits the need. Utilization of biodegradable materials i.e. natural fibers for various applications to preserve the environment from synthetic fibres invites the development of natural fiber reinforced polyester composites. In a country like India which is producing an enormous amount of agricultural solid waste (in the form of leaf, fruits, stems etc.) there is lack of marketing for the above-said wastes if this can be improved the farmers may get benefited. Natural fiber reinforced composites are preferred than conventional materials because of their advantages like low density, lightweight, high strength to weight ratio, low cost, high toughness, and biodegradability. The present investigation deals with the preparation of jute, pineapple leaf fiber and jute-pineapple leaf fiber (Hybrid) reinforced polyester composite and to determine the tensile, flexural and impact properties with increase in percentage weight fraction of the fiber and to compare the properties of the composites. Further, the experimental results will be validated through ANSYS software.