Aimed at the serious water logging phenomenon when rainstorm takes place in the southern urban area of Yichun Municipal Economic and Technological Development Zone,combined with water source of water logging and the current situation of drainage facilities and based on the general principles of high water drainage,dividing up into parts,and gradual implementation,the drainage general plan and the gradual implementation plan,which build open channel to cut off water logging water and discharge into the upstream of Wentan River and transform the present drainage facilities into the drainage ditch which is the brick ditch and cover plate for structure safety,convenient operation management and maintenance,are proposed in this paper.