Abstract: Wetland is an ecological landscape that has the most biodiversity in nature,and it's one of the most important survival environments.Wetland has gained more and more close attention all over the world.It is urgent to protect the wetland resources and its biodiversity. The building of the wetland ecological monitor system is favorable for the protection and rational utilization of wetland resources.The idea of building wetland ecological monitor system was put forward,which is based on the wetland investigation in Jiangxi.The paper discusses the institution,technique route,monitor type,monitor content and index of wetland ecological monitor system.The building of the wetland ecological monitor system can provide the timely and accurate data for the wetland protection and ecological management,and it can offer the basis for the scientific strategic decision for the rational utilization of the wetland resources and the improvement of the wetland eco-environment.