Based on the data from 1961 to 2001 the basic patterns of the summer rainfall in Shandong and its relationships with,the North Hemisphere height of 500hPa,atmospheric circulation cha -racteristics, and the North Pacific SST are investigated respectively. The results show that there are strong signals in previous stage in the different patterns. Regarding the strong signals as main predictors and combining them with rainfall oscillation, a statistical prediction model of summer rainfall in shandong has been built. Finally, the prediction experiments are carried out.