Poly methyl methacrylate (PMMA) is a widely used polymer in various industries. The polymer for high traarency (above the glass) is widely used in various industries such as defense, art, advertising, construction, agriculture, medicine, security shield, replacing the glass in buildings, roof greenhouses, contact lenses, dentures, optical fiber, glass displays, aircraft and helicopters can be mentioned. Also, the physical properties of PMMA is somewhat suitable, but due to fragile weakness, its application is limited in various industries and shoulde strengthened. The aim of this study is the use of core-shell PAN/PMMA nanofibers as a PMMA reinforcing and comparing it with PAN nanofibers (polyacrylonitrile) reinforcment. Core-shell nanofibers produced by conventional electrospinning method and through phase separation of PAN/PMMA solution. ATR-FTIR and EDX test results indicate that the formation of the core-shell structure nanofibers (PAN: core and PMMA: shell). Nanocomposites were prepared using Dip-coating method and the obtained nanocomposite tensile, bending and traarency experiments were evaluated. The results show that nanocomposites reinforced with nanofiber layer with the composition of 50/50 (PAN/PMMA) have the highest tensile and bending properties. Thus, nanocomposites were prepared using the volume fractions of 1.7, 2.9 and 5.7% reinforcement. The obtained results show that by increasing volume fraction to 2.9%, the tensile modulus and bending modulus increase by 29.92% and 12.7%, respectively. But by increasing volume fraction to 5.7%, tensile modulus and bending modulus of the nanocomposite decrease by 11.24% and 7.4%, respectively. Also, the traarency of the samples were analyzed using spectroscopy and found that by increasing volume fraction to 2.9 and 5.7%, traarency decrease to 8% and 3.8%, respectively. The optimum mechanical properties were obtained in sample having 2.9% vol nanofibers with composition of 50/50 (PAN/PMMA), and in term of traarency 1.7 vol had best performance.