The wave model is applied at a resolution of 1.0 degree and 0.125 degree and is driven by the 10 meter wind, produced by the ECMWF (ERA-Interim) data over the same area for the purpose of the validation process using the hindcasting technique. Two different sources of data have been used for the validation of the model outputs. The first dataset is provided by a Layang-Layang buoy located over the South China Sea (SCS) maritime areas and the second consists of altimeter data, provided by the AVISO. In general, the Layang-Layang buoy located in the SCS, the MMD-JMA MRI-III model tends to overestimate the significant wave height (SWH) in the region of the Layang-Layang Island. The correlation between the Layang-Layang buoy observation and model simulation is good with the value of 0.7 for the average three month period. The comparison with the altimeter data shows that the model has a tendency to underestimate the height of the SWH, both for the coarse grid resolution (1.0 degree) and fine grid resolution (0.125degree). We find that the agreement between observed and modeled Significant Wave Height (SWH) is very good for MMD-JMA MRI-III models with a correlation of 0.8 to 0.9 for both grid resolution. When comparing coarse grid (CG) and fine grid (FG) we find that the behavior of the two models are quite similar, but CG performs slightly better than FG in term of correlation. This may be due to the fact that the Layang-Layang buoy are located offshore where the advantage of CG cannot be seen.