Contact angle is significant parameter to simulate droplet spreading after impingement on the wall because it is based on analysis of surface tension that is important term in the momentum equation. In almost numerical approaches, it is implemented in the boundary condition as constant value. However, contact angle has various values as different time and contact line velocities. In this paper, the simulation of droplet spreading on the heated surface is presented and both static contact angle and dynamic contact angle which is function of contact line velocities and time are considered as boundary condition to calculate surface tension. Newly modeled function which is obtained the experiment of single droplet spreading and impingement on the flat bare wall is used for dynamic contact angle. The VOF (Volume of Fluid) method which is one of the most famous interface tracking methods and CSF (Continuum Surface Force) model are used for calculation of interface between two phases. Overall, in the numerical result of droplet spreading and impingement on the heated surface, the heat exchange (flux) is affected by contact angles. Furthermore, this heat exchange affects the dynamics of droplet. The larger Weber number shows larger heat exchange between droplet and surface, larger droplet spreading radius and lower spreading height.