Aiming at the problems of single content setting, insufficient teaching means and unsatisfactory teaching effect of communication electronic circuit experiment, an experimental mode with task as the main line, teachers as the leading factor and student as the main body is proposed, and various teaching methods such as association, inspiration, task-driven and project analogy are integrated. Taking the design of high stability LC sine wave oscillator as an example, three experimental tasks and contents of basic, advanced and extended are designed to meet the different needs of students for experiments with diversified packages. The realization of Clapper, Sealer and crystal oscillator circuits on a circuit board makes it easier for students to grasp the differences and connections of the three circuits. The “project analogy teaching method” is adopted to enable students to master the process and scientific methods of solving typical communication engineering problems through this experiment. Task introduction and ideological and political links are skillfully combined to establish students’ awareness of rejuvenating the country through science and enhance national pride.