Currently, composite materials such as thermoplastic resin with carbon fibers have been used widely in sports equipment, automobile and aerospace applications. However, the temperature gradient induced by laser bonding process may result in significant defects such as warping and flashing. To alleviate such defects, the temperature variation with time and spatial distribution on the composite material surface during bonding process must be properly understood. Hence, in this study, a simple heat transfer model was developed to predict the temperature distribution and to perform mathematical analysis.