Abstract:As the new administrative center of Weihai city, Binhaixincheng in eastern coastal area is a modern and excellent new city which is strived to build. It is suitable for living, working, traveling and learning. In this paper, the twodimensional MIKE21FM plane numerical model has been used to study the flow field movement in the northern sea area of Binhaixing in eastern Weihai city, and the stratified flow direction measured data have been used to verify the model. It is showed that the numerical simulation results of flow velocity and flow direction in the study area are basically consistent with the measured data.