Disc brakes are used to stop or slow down the rotation of the wheel. In this paper, there is discussion regarding heat distribution on the disc brake during the phenomena of braking. Due to change from kinetic energy to mechanical energy heat is been distributed on the disc brake. The reason for Energy change during braking process is friction between the surface of the disc and disc pad. As a result of friction, the temperature rises extremely high. The aim of this study is to perform finite element analysis of disc brake and analyze the thermal effect through examining heat distribution on disc brake using 3-dimensional model. After the analysis, it has been obtained that due to friction between disc pad and disc rotor the temperature rises. Obtained results are used for identifying the effect of heat distribution during the braking process.