By dividing Summer rainfall in Sandong province,the teleconnections between precipitation in each divisions and the circulation characteristicts in and before summrs and the sea surface temperature are studied by means of correlative analysis. The results show that the correlations between summer rainfall and circulation characteristics and SST are significant. Based on the above analysis,the factors are selected,and the prediction models of multidimension mean generation function are developed. Finally,the summer rainfall tendencies before the year of 2000 in each division and the whole province are given.