In this paper,test data obtained from the research on upland rice yield under RDI is firstly analysised.To identify variables that has a significant impact on production,grain weight,effective ear,grains per spike,the statistical regression model is established between production,grain weight,effective ear,grains per spike and the irrigation water amount of three stages of crop.Secondly,the establishment of a fuzzy evaluation model is to determine theoretically the satisfied water-saving irrigation technology program of upland rice and conduct a comprehensive evaluation.it has important signif...