Abstract: The adverse effects of climate change and urbanization on extreme rainfall and urban environment have brought great pressure to urban drainage infrastructure and seriously threatened the water security and environment in urban areas. The urban drainage system,which collects and transports rainwater and sewage,is an important infrastructure to ensure urban water safety and water environment. The comprehensive reduction of inundation risk and black and odorous water cannot be separated from the reasonably integrated operation of urban drainage pipe network,wastewater treatment plant and river. This paper reviews the research progress of integrated modeling and operation of plant,network and river,demonstrates the necessity of integrated operation of plants,networks and rivers,and puts forward the key points of future research on the current technical problems.