Based on the basic principle and method and BP neural network AHP, Combined with the actual construction area, the paper built thea index system and evaluation standard of sustainable utilization of water resources in accordance with bundant water area by using the analytic hierarchy process, brought forward 50evaluation indexes from five aspects of water resources condition, development and utilization efficiency of water resources, state of ecological environment, rational allocation of water resources and water resources management ability.Using double hidden layer BP neural network, it established the sustainable utilization evaluation model of AHP-BP water resources and comprehensively evaluated the state of sustainable utilization of water resources of Wenshan state in different level years. The results show that the evaluation grade of sustainable utilization of regional water resources in different planning level years is 2~ 3, witch is between sustainable and basic sustainable and reflects the state of Wenshan and the status of long-term water resources sustainable utilization that is accordance with the actual of regional development.The result shows that the model of AHP-BP evaluation and the evaluation method established in the study is reasonable and feasible. The AHP-BP evaluation model overcomes the shortcomings of the subjectivity of AHP judgment matrix and the consistency being not easy to test and can meet the requirements of objective evaluation.The two-hidden layer BP neural network has the advantages of short learning time ,quick converge speed of parameters and strong adaptive ability etc compared with single hidden layer network.