Abstract: Aiming at the problems and deficiencies in the current experimental teaching of the principle of automatic control, this article puts forward the ideas, goals and measures of experimental teaching reform. A series of reforms have been explored from the aspects of teaching content system, experimental teaching materials, teaching methods, assessment forms, and experimental teaching management modes. The reform and innovation of experimental teaching has stimulated students’ enthusiasm for learning, promoted students’ systematic learning of basic theoretical knowledge, improved the ability to analyze and solve problems, and cultivated students’ engineering practice ability, comprehensive application ability, innovation ability and collaboration ability, and finally achieved good teaching results.