Climatological water vapor transport over monsoon areas is investigated based on NCEP/NCAR wind and moisture reanalysis data for the period 1958～1998.The climatological characteristics of water vapor transport over Shandong province is analyzed. It is indicated that the water vapor transport in May and June from tropical Indian Ocean, tropical and sub-tropical West Pacific is important to the summer rainfall in Shandong province, and the water vapor transport in flood years is much more than that in drought years. In July, although the water vapor transport from tropical Indian Ocean arrives its maximum and the mostly part of China is dominated by south-west monsoon, its contribution to summer rainfall abnormality in Shandong province is undistinguished, on the other hand,the contribution resulted from sub-tropical West Pacific is evident.The latitudial transports from tropical Indian Ocean and the longitudinal transports from sub-tropical West Pacific is correlative to summer rainfall in Shandong.