Abstract: In view of the current problem of insufficient training of students’ practical ability in the experiment of automatic control principle,according to the needs of undergraduate colleges and universities to transform into the development of applied technology, a set of experimental teaching methods based on virtual instrument is designed and implemented. This method is carried out progressive experiment teaching through numerical simulation, circuit simulation, hardware construction and testing, which deepens the students’ understanding of the content of the automatic control principle course. The concept of the virtual instrument is implanted and applied in practice. At the same time, the actual process of real-life system engineering design is simulated, which enhances students’ programming ability, simulation ability and hands-on ability. The students have cultivated the correct design habits and laid a good foundation for further innovation and design experiments.