Aiming at drawbacks existing in SCM test chambers, people have developed a SCM experimental system featuring simple circuit, low price and practical. Based on necessity and principles of SCM experiment teaching reform, people have designed the overall structure of experimental platform, and elaborated design solutions of system hardware and software. Adopting the pattern of combining listening, watching, doing, thinking and practicing, utilizing hands and brains together as well as letting teachers and students interactive, the development platform has aroused students interest for study, attained obvious teaching results, and also satisfied the actual demand of experimental field for flexible choosing.