Based on two-dimensional hydrodynamic model and by taking only the tidal current action into account, the structure of tidal residual currents and the trend of particle migration in the northern part of the North Yellow Sea, which lies on the north of the line from Dalian of Liaoning Province to Longyuan County of North Korea, are studied through calculating the Euler residual current and the Lagrangian residual current and by means of particle tracking method. The results show that both the Euler residual current and the Lagrangian residual current are generally small in flow speed and flow from south to north, while in the waters near the Zhangzi Island and the Changshan Islands and in the coastal waters of Korean Peninsula the two residual currents are both larger in flow speed. By comparing with the results from particle tracking calculations, the flow directions of the two tidal residual currents are basically coincidence with the particle migration path. The regulation and characteristics of the tidal residual current flowing and the particle migrating in the study area have important reference significance for the sewage discharge and pollution control in the waters along the eastern coast of Liaodong Peninsula and the western side of Korean Peninsula. 