The processing of high performance polycarbonate and its fillers has a great importance to the automotive industry, aerospace and many daily life applications. The dynamic stress-strain behavior of polycarbonate melt with and without fillers is studied using a stress-controlled rheometer. With this apparatus, dynamic properties are determined as a function of the applied stress, concentration of fillers, particle size, and oscillation frequency. The experimental technique is rapid and provides a convenient way to obtain dynamical information of polymer melts. Experimental data fit for dynamic modulus, loss modulus, and loss tangent of polycarbonate melt with and without fillers are also discussed.