Electric circuit knowledge is the basis of intelligentmedical instruments. The circuit course trains students with strict theory andstrong logic. It can not only teach students circuit knowledge, train studentsto connect basic theory with application, but also exercise students'dialectical thinking ability and ability to analyze and solve problems.Therefore, this course composed of three major introduction-level components ofelectronic circuit basics, analog electronics basics, and digital electronicsbasics aims to teach the basic knowledge of electronic circuit, train students'critical analysis ability and problem-solving ability. It lays a foundation forthe subsequent study of courses related to intelligent medical instruments.