Wetland ecosystem models play an important role in the wetland assessment,restoration and construction.Models can be constructed by sampling and monitoring.The paper first gives the frame construction of wetland ecosystem models, then discusses three types of models.In riverine,the models includes hydrologic and hydrodynamic models,sediment accumulation models,and water quality models.Such as water budget,biomass,P,N models are the main types in mires and floodplain models.Wetlands degeneration is also an important problem for wetland study,so the paper also presents the degeneration model,especially the phyton control models. At the same time,the paper presents some problems existing in the modelling and the model studies in the future.