Using two-dimensional shallow-water tidal wave motion equation and continuity equation,combining with measured data of one tide station and four flow sites to verify the trend of points,obtained the realistic flow field,on which basis,the analysis that contain flow field,deposition and the water quality caused by the project could be obtained.The results show that: the southwest region produces the velocity increase,while the other regions of it and the area near the pier produce the velocity decrease.The m...