The latest progress on the numerical simulation of mold-filling and solidification process of shaped iron casting in China was reviewed. In order to obtain an accurate profile of the velocity distribution and to track the free surface in the mold-filling process of castings, the SOLA-VOF algorithm was improved, in particular with respect to efficient free surface treatment and turbulence. Parallel computational techniques were implemented to accelerate the fluid flow calculation time. Based on a series of experimental studies, a new dynamic contraction expansion accumulation method (DECAM) was developed to predict the shrinkage cavity of S.G. iron castings. For stress simulation, a combined FDM/FEM method was implemented to analyze the residual stress and deformation of castings. Models for the simulation of microstructure and prediction of mechanical properties of S.G. iron were established. The verifications and practical applications of the simulation software show that the models and techniques are efficient and appropriate for the numerical simulation of shaped castings