Abstract: In order to cultivate students’ basic practical ability,design ability and innovation ability,this paper puts forward method of “top-down” practice teaching.The method based on the practical teaching of electronic technology practice.To cultivate the students’ practical ability,designed capability and innovational ability,the practical teaching system is constructed,which includes “one main line,three levels and six categories”.The experiment context with different levels and categories can stimulate students’ interest in learning practice.Through the research and exploration of teaching reform,the actual effect of educating people has achieved practical results.The research is popularization and significance for the reform of practical teaching in colleges and universities.