In order to improve the teaching effect of modified digital multimeter experiment in the basic physics experiment, combined with the experience in the actual experiment’s operation, the teaching process of the “Measuring the transistor’s h_FE parameter” part of the digital multimeter modification experiment is further improved, especially for the physics students who have not studied the related electronic technology courses systematically. Also, the teaching effect has been optimized, making the experiments measuring the parameters of electronic components more acceptable for the students majoring in physics at this stage and enhancing students' understanding of modified digital multimeter and its application.