By using HURRAN analog method of forecasting typhoon tracks,combined with 500hPa synoptic situation,the prediction of typhoon tracks has been improved.Synoptical models,diagnotic analyses,cloud features of typhoon,and experiences of weatherman have been applied to the study of the expert system which can give quantitative and objective conclusion of forecasting the typhoon weather (high wind,heavy rain)in the south Fujian.The data needed by the system are easily available.The system takes only about ten minutes from collecting the data to outputing the results of prediction,which reduces the time expense greatly in making typhoon prediction.