Fluent ver.6.3 is used as CFD(Computational Fluid Dynamics) simulator to predict the performance of snow-melting system by geothermal pipes energy. As the results of this simulation, it is clearly shown that $50^{circ}C$ of working fluid in to geothermal evaluated as more effect comparing to $45^{circ}C$ of working fluid. The Surface temperature is come to $5^{circ}C$ at 1m/s speed and $50^{circ}C$ temperature of the working fluid.