The utility model provides a controllable aquatic products oxygenation device of water flow direction, including base, breakwater and aeration part, the breakwater be connected with the base through a pair of freely movable joint, the breakwater is installed in one side of base, the aeration part sets up on the base, freely movable joint includes fixed block and sleeve A, fixed block fixed mounting on the base, sleeve A and fixed block articulated, sleeve A's upper end be equipped with the breach, the thickness of width and breakwater of breach match, supply the breakwater to insert and form fixed connection. The utility model discloses the device through set up in the bottom aeration parts with the high -efficient dispersion of air to the aquaculture water body in, rise to rivers directional flow that the surface of water produced with the air from the bottom through adjusting the breakwater, pass through the water rotation when realizing high -efficiency oxygen aeration and breed the wastes material with excrement and incomplete bait etc. And concentrate, be convenient for breed the timely discharge of wastes material to guarantee aquaculture water body stabilization of water quality, realize that aquaculture increases production and improves productivity.