For the full utilization of the water depth conditions of the Yangtze River Jiangyin waterway, we carry out a study on the technical feasibility and utilization plan.Based on the 2D mathematical model calculation, review of waterway conditions, and analysis of tidal level cumulative frequency, we come to the conclusions as follows.In the past ten years, Jiangyin waterway had a water depth of not less than 13.60 m and a certain available tidal level, and it was technically feasible to increase the draught to 12.0 m.Based on the case analysis of the use of waterway depth in the Yangtze River, two ideas for using the waterway depth in Jiangyin waterway are proposed, which provide scientific and reliable new methods for deepwater channel maintenance management, and promote innovation of channel maintenance management.