The current code for Construction Supervision of Water Conservancy Projects(SL288-2014)firstly quotes the concept of special inspection in the provision description and specifies the implementation content of special inspection,but it does not define special inspection and not formulate its items,frequencies and procedures of special inspection either,so the implementation effect of special inspection for water conservancy projects is not very satisfactory.Viewed from three aspects of special testing frequency,testing cost and testing procedure,and on the basis of summarizing quality testing frequency,testing content and experience of hydraulic engineering and other industries,this paper puts forward special testing implementation items,testing frequency and procedures for construction quality of hydraulic engineering,which provides reference for popularization and application of special testing in hydraulic engineering.