Abstract: The Daliushu hydraulic complex is to be built at the outlet of Heishan Gorge, controlling 33.6% of the Yellow drainage, 58% of the total runoff, and 10% of the total sediment transport. This river section that carries more water and less sediment, provides a superior condition of water resources development. In this study, advanced equipments, such as acoustic Doppler profiler, RTK and laser particle size analyzer, have been adopted to measure velocity field, water depth, riverbed elevation, shore water stage, and particle size on 19 typical cross sections. The features of cross-sectional velocity, sediment transport, and riverbed deformation are analyzed to explore the relation of the flows in natural curved channels versus their riverbed evolution. It is shown that the acoustic Doppler profiler can better measure the flow field and bed elevation of a natural river. The measurements provide basic information for management, construction and operation of the Daliushu complex.