Channel is an important national public welfare transportation infrastructure.In recent years,the contradiction between supply and demand for channel maintenance funds has become increasingly obvious,which has become a prominent problem in China's channel maintenance management.This paper analyzes the basic situation and the main problems of channel maintenance funds investment.The main problems include insufficient scale of channel maintenance investment,unreasonable expenditure structure,and imperfect funding guarantee mechanism,etc.In response to these issues,this paper proposes countermeasures and suggestions,such as enlarging the scale of central and local financial maintenance funds,compacting the responsibility for channel maintenance expenses,promoting the separation of channel management and maintenance funds,and expanding new channels of channel maintenance funds,in accordance with the idea of “consolidating sources and tapping potential,ensuring mechanisms,optimizing allocation,and exploring innovation”.The purpose is to accelerate the construction of China's inland channel maintenance funds guarantee system and steadily improve the quality and service level of channel maintenance.