水资源价值是指水资源使用者为了获得水资源使用权需要支付给水资源所有者的货币额，它与水价是不同的概念，合理的水价应包括水资源价值。目前可以用来求算水资源价值的模型不同程度地存在各种问题，必须加以完善和发展。影子价格模型只反映水资源的稀缺程度和水资源与总体经济效益之间的关系，其结果不能代替水资源价值；边际机会成本模型存在着应用困难较大、替代选择多样性、结论缺乏可比性、忽略了水质等问题；供求价格模型仅仅通过水资源量决定水资源价值是不科学的；模糊数学模型是潜力较大的最新模型，其缺点是影响水资源的各项因素的模糊评价较复杂，权重的确定是多样的。

    The value of water resource is pointed out to as a definite quantity of money paid to the owner of water resource by water resource appliance in order to acquire servitude of water resource. It differs from water price in conception, for proper water price should include the value of water resource.
    At present, the models those can be used to reckon the value of water resource present many problems in different degree, must be completed and developed. The shadow-price model only discusses the scarcity degree of water resource and the relati n between water resource and general economic efficiency, its out come can't be used as the value of water resource; Marginal opportunity cost-model is more difficult to apply, to variety of displace-selection, to be lacking in conclusion comparability, and to neglect in the quality of water; Supply-require price model is unscientific to define the value of water resource through the quantity of water resource solely; the model of Fuzzy-mathematics is up-to-date and promising to assay the value of water resource, at first, it does fuzzy assessment value, then, translate it into the value of water resource by price-vector, its defect is the complexity in fuzzy-assessment for the factors influencing the water resource, the definition of weight factors is not unique.