In terms of the characteristics of water resource compound system and the conditions of water resources,an evaluation system of sustainable water resource utilization has been established according to the principles of sustainability.Projection pursuit model(PPM) and real coding based genetic algorithm(RGA) have been used in the evaluation,which can synthesize the multiple factors into a single pursuit value and attain an optimal scheme.The result shows that it is effective to solve the weighted human interference,and fulfill the evaluation of sustainable water resource utilization by an optimized sequence.