In this study,numerical simulation and temporal-spatial analysis are carried out on the typical typhoon-induced ocean eddy and offshore anti-cyclonic eddy in the Yellow Sea in order to investigate its three-dimensional structural characteristics,energy transference,energy conversion,and influence mechanisms of the ocean eddies.Utilizing the advantage of simulating small and meso-scale offshore ocean systems,the FVCOM (Finite Volume Community Ocean Model) regional ocean numerical model is employed as the model.According to the simulation results,the core component of both the cyclonic and anti-cyclonic ocean eddies transfers less energy than the asymmetric strong current,which also has a longer sustaining time and a deeper transmission depth.Due to the convergence of Ekman flow,this difference is more obvious in the anti-cyclonic ocean eddy.The kinetic energy of typhoon wind stress and the available potential energy of the ocean eddy are mostly converted to create the kinetic energy of the cyclone eddy.Since the wind speed over the anti-cyclonic eddy region is low,the anti-cyclonic eddy system maintains a low level of kinetic energy,and its intensity increases according to its available potential energy.The influence mechanism of environmental factors is mainly in three aspects:wind and waves,bottom friction and terrain.The results show that adding the coupled wave module allows the combined effects of typhoon strong wind stress and wind waves to increase the magnitude of the typhoon-induced ocean eddy,speed up the eddy circulation,and decrease the adjacent anti-cyclonic eddy.The wind wave contributes positively to the typhoon-induced ocean eddy.During strong typhoon processes,the surface circulation of the typhoon ocean eddy reacts to typhoon stress.and the domain topography and bottom friction both have a significant impact on the lower portion of the eddy structure.The top and bottom features cause the structure of the ocean eddy to shift vertically,slowing down bottom circulation and producing an opposing flow direction between the upper and lower part of the eddy region.Under the mixed layer,there is high temperature and salt content,and the upwelling responds to the strong divergence areas of the cyclonic and the anti-cyclonic ocean eddies,while the downwelling react to the convergence areas of the eddy regions.Meanwhile the rolling topography changes the temperature and salt levels of the upwelling and downwelling,with their intensity corresponding to the terrain scale.