Fine sand is one of the most common materials available along the costal line which is not considered as the construction material. It has very poor engineering properties. It is not suitable as subgrade for pavements and foundation material due to its unbound character. Hence it is very essential to improve the properties. Stabilization of fine sand with cement improves its strength and stability but it is very expensive. In this study an attempt is made to improve the engineering properties of fine sand by reinforcing with polypropylene fiber of 6 mm and 12 mm length. A series of laboratory tests are performed with different proportions i.e., 0.5%, 1.0% and 1.5%.Evaluation of engineering properties of fine sand from Visakhapatnam costal area and optimum fiber content is done. The results of the study indicate that 12 mm length fibre is more effective than 6 mm fibre in improving the engineering properties of fine sand. The optimum fiber content for fine sand is 1%. From the stress–strain curves it is revealed that fine sand exhibits ductile behaviour on adding fiber to it. The percentage increase in angle of internal friction of 6 mm and 12 mm fiber is 5%. Percentage increase in CBR value of 6 mm to 12 mm fiber is 43%. Coefficient of permeability of fiber reinforced fine sand increased by 1.07 times and 1.29 times that of unreinforced fine sand of 6 mm and 12 mm fiber. Percentage decrease in Cu value of 6 mm to 12 mm fiber is 34%. Compressibility index of fine sand decreases and maximum dry density is decreased with increase in fiber content.