A new method of the abrasive tool topography simulation for surface-contact grinding is advanced based on the description of exposed grain feature and the stochastic allocation characteristic of abrasive grains emerges in grinding process. In this paper, particularities of surface-contact grinding and simulation method suitable for the particularities are discussed. The physical behaviors of abrasive tool topography are analyzed with respect to the effect of grain status, grain location and influence of dressing. The simulation model is proposed as synthesis of simulation for the grain size, grain location and influence of dressing. It has been shown from the simulation experiment that this feature description and probability statistics theory based topography model can describe the particularities very well and is proved feasible for simulation of surface-contact grinding.