Through the test,contrast and analysis among the three numerical prediction products of T106 HLAFS and Japanese model used in present work on the effect of Yantai rainfall prediction,it is found that the numerical prediction products have some directive functions in the rainstorm and rainfall prediction,and Japanese model is better than HLAFS.Yet,HLAFS is better than T106 on the effect of the rainstorm and general rainfall prediction.The accurate rate of rainfall prediction of the three prediction products to the low pressure and upside down trough is commonly higher,and the accuracy of rainfall is 75.9% when the three prediction products all predict that there will be rainfall.