Aimed at the three effects of ecology, economic feasibility and comprehensive utilization of river, the paper constructed an index system model of assessment after river ecological restoration based on analytic network process (ANP). It used the best confidence interval theory to improve the model so as to elevate the accuracy of expert advice，and compared the model with the traditional evaluation model after river ecosystem restoration-Analytic Hierarchy Process (AHP).The results show that on the scientific decision-making of assessment after river ecosystem restoration,the model built on ANP is more comprehensive and objective,and is more accurate than the AHP model.It introduced matter - element extension method (MEE) to apply the evaluation model to the comprehensive evaluation of a typical ecological flood ecological restoration project in four typical years.The results indicated that the role of the ecological restoration project is obvious and the river ecosystem has been greatly improved and has good self-sustainability.