To minimize the geometric error made in ground surface, the optimization of grinding parameters is essential. This paper focused on the parameter optimization of the surface grinding process based on Taguchi and response surface methods for minimizing the geometric error. Firstly, the effect of grinding parameters on the geometric error was evaluated and optimum grinding conditions were determined. Then, a second-order response model for predicting the geometric error was developed and the validation of the response surface model was examined with industrial constraints such as the surface roughness and the material removal rate. Finally, experimental verification was conducted at an optimal condition and two selected conditions to see accuracy of the developed response surface model.