Abstract: In the process of electronic circuit experiment,students often make a varity of mistakes,error probability is higher with a bread board in circuit experiment.Some mistakes should be remind them to pay attention before the experiment beginning,and students should be allowed to try on their mistakes without damaging the devices and personal safety.Then they can observe the errorphenomenon in the experiment and analyze the reasons that cause the error phenomenon.Properly analyze and deal with the phenomenon in the experiment is very helpful to improve students' ability to experiment and improve the ability to solve problems.The paper analyzes several common mistakes made by students in the circuit experiment,discusses the reasons for these mistakes,and on this basis gives some solutions to the problem.