Nowadays there is a huge demand and high cost in rural water conservancy construction. Therefore, problems in rural water conservancy construction can not be solved with the support only from government’s funds. Based on the rural water conservancy which has been constructed, needs to be expanded and will be constructed, this paper, from necessity and feasibility, demonstrates the inevitability of introducing public-private-partnership (PPP) model into rural water conservancy construction with the combination of characteristics of rural water conservancy construction. This paper finally puts forward three specific forms in implementing public-private-partnership models and illustrates the ways on how to promote rural water conservancy construction from aspects of both systematic construction and policy guarantee.