Abstract: Experimental teaching is an important part of higher education,which plays an irreplaceable role in consdidating theoretical knowledge,improving practical ability and cultivating the spirit of innovation and so on.In this paper,the existence of water supply and drainage problems in the experimental teaching,combined with professional features and needs,in terms of experimental teaching system,teaching mode,assessment methods and teaching conditions were reformed and practiced.Establishing scientific experimental teaching system and student-centered teaching mode,rational reform of the experimental evaluation methods,and improving experimental teaching conditions,have achieved good teaching results.