The invention discloses a port hydraulic structure. The port hydraulic structure comprises a concrete framed wall and a bank protection net, the concrete framed wall is arranged on the water side of a port in the mode of forming an included angle of 30 degrees with the horizontal plane, the upper end of the concrete framed wall is connected with the ground plane of the port, a plurality of parallel reinforcing steel bars are arranged inside the framed wall, and the intervals of the reinforcing steel bars is 5-8 cm; the adjacent reinforcing steel bars are connected by a plurality of circular glass fiber stirrups; the bank protection net is laid on the concrete framed wall and is of a hollow box-type structure formed by connecting stranded wires; the bank protection net is provided with a concrete layer, a grouted rubble layer, an absorption and filter layer and a sediment ecological bag layer from bottom to top; the absorption and filter layer is of a layer structure formed by graded gravels, zeolite and coal ash in a laying mode, and the thickness of the absorption and filter layer is one fourth of the thickness of the bank protection net; and the sediment ecological bag layer is formed by laying ecological bags filled with sediment and fine sand. The port hydraulic structure provided by the invention has the characteristics that convenient and rapid manufacturing is achieved, the cost is effectively reduced, the water loss prevention capacity is high in usage, stability is high, and the service life is long.