Under the new requirements of cultivating talents in new engineering disciplines, the objective of the reform of engineering practice teaching is to cultivate more outstanding engineering innovative talents. In order to solve the contradiction between classroom knowledge focusing on basic theory and the cultivation of innovative thinking talents, Sichuan University Circuit Laboratory has applied the experimental teaching system based on LABVIEW visual graphical programming software, which has the functions of signal analysis, data acquisition, data processing, data saving and data graphical display, etc. to the experimental teaching of undergraduate circuits. The GDS-1000B, AFG-2225 hardware platform and LABVIEW software are used to collect and process voltage, frequency and waveform data from series resonant and single-tube amplification circuits, enabling independent analysis of resonant frequencies and effective storage of waveform data. The experimental results show that the system is stable, has high measurement accuracy, and can be applied to other experiments and research projects with good portability.