In the recent years, due to environmental awareness of general public, researchers and scientists directed towards the use of natural fibers reinforced composites as environmentally friendly. Now a days, many scientists, researchers and engineers have explored the extraction, properties and utilization of natural fibers as economically and effectively as possible to produce good quality natural fiber reinforced polymer matrix composites. Many scientists and researchers proved that increase in fiber loading resulted in increased mechanical properties of the composite material. This will be the basis to develop and to evaluate properties of natural fiber reinforced polymer matrix composites. In this research, Kenaf long fiber reinforced epoxy matrix composites were successfully fabricated by simple and cost effective hand layup technique and their mechanical properties such as tensile strength, bending strength, impact strength, hardness with different fiber loading were successfully investigated. Water absorption capacity was also reported. The fibers are treated with NaoH solution for surface modification and to improve mechanical properties. The specimens are prepared according to ASTM standard and experiments were carried out.