The graphic system is a real-time system which has been playing an important role in T63 products output of NWP. This system provides a lot of functions,such as acquiring data,building database, quality control, data conversion, curve fitting, graphics display, artificial intervene and ete. Its special features are of easy operation,convenient to be used, plenty of products,high qualitative analysis,short running time,and providing accurate graphic products for forecasters or other users. So, it's a powerful tool for the making of weather prediction and meteorological research.