In this paper, by means of the thought of software reverse engineering, according to the practical problem that the difficulties of analysis and explaining by teachers, and students are not easy to understand the knowledge, it applies the computer multi-media visualization technology, researches the related technologies and methods which demonstrate dynamically and interactive operation in the CAI. As well as realize the reverse demonstration of common algorithm, meanwhile, the automatic interpretation of the algorithm statement, morphology and sentence structure analysis and dynamic display technology are studied deeply.