The construction of Xingan hydraulic project hinders the tracing channel of migratory fish in the junction area,and changes the hydrological regime of the original river.In order to restore the migratory passages of fish and guarantee the water ecological environment of the Ganjiang River basin,we plan a near-nature fishway,carry out adequate design and analysis in many ways，such as basic data,the main fish,fish way type,structure size,and establish a physical model test to further optimize and improve the flow conditions.The results show that the fishway designed can meet the upward demand of target fish under the designed water level combination condition,and the flow condition is well.The relevant research results can provide an effective reference for the construction of fishway in other water control projects.