To better use the products of numeric model, the synoptic verificati on of mediumrange forecast from model T639 in the summer of 2009 is made in c om parison with ECMWF and Japan models. The results show that the models have good p erformances in predicting the largescale circulation evolution and adjustment in the Asian middle and high latitude areas, but they all show a positive error in the westerly index forecast. Model T639 has certain ability in predicting the s ubtropi calhigh and the temperature of 850hPa. Compared with the EC and JP models, mod el T639 has a larger error and shows some systematic errors for the temperature forecast . For typhoon Morakot, model T639 performs well in its genesis forecast, but wors e in the typhoon track and landfall forecast. 