Abstract: Jiao-Li reservoir dam is MgO concrete asymmetric parabola double curvature arch dam with 46.5m high.The key techniques of reservoir project construction management designs in the feasibility study stage are in the depth analysis， the construction diversion method， major structures construction scheme，general construction layout and construction master schedule are proposed.Adopting the successive section cofferdam and diversion tunnel flow river diversion scheme， sand processing， concrete production，comprehensive processing and other construction auxiliary systems are putted-up in the project construction general layout.After the optimal design， the total construction is proposed to 22months， which will shorten the construction progress， improve the construction quality， and get good designing effects.