In order to reasonably use water resources and reduce unnecessary economicloss,this paper based on fuzzy theory and operational research theory,and established an optimal scheduling decision model based on fuzzy multi-parameters. The result shows that the decision model is feasible for water dispatch in the Fenshuiling waterworks of Jinan City.Through defuzzying subscription fees W of water diversion and water requirement M it obtains minimum expected total cost and more reasonable cycle and volume of water diversion.The model can provide a reference for reservoir diversion, water use of productive enterprises,the water supply of waterworks and storage of oil depot etc.