Chitosan is a natural polysaccharide next to cellulose occurring in nature. It consists of a linear (1-4) linked 2 amino 2 deoxy D glucan. It can be chemically prepared from chitin by treatment with alkali at elevated temperature. Chitosan is non toxic, biodegradable and biocompatible polymer. Chitosan is widely existing in nature and has antibacterial effect, heavy metal adsorption effect, anti-oxidation effect and film formability. Chitosan forms viscous solution in various organic acids. These viscous solutions have been used to make functional films. They were readily biodegradable. The main objective of the present research is to develop and a nanocomposite of chitosan films in terms of surface morphology. The effect of plasticizer was also studied. The plasticizer increased the smoothness of surface. The smoothness was confirmed by SEM EDX, AFM studies. The interaction of chitosan and plasticizer was confirmed by FTIR studies and XRD.