CAI (Computer Assisted Instruction) as a modern teaching technology, education workers have been receiving increasing attention. Multimedia courseware for computer-aided instruction is the most important media, with its rich media forms, powerful teaching interactive features, unlimited expansion of knowledge and information links and to facilitate freedom of the autonomy of the study, use of multimedia courseware organization has been teaching Generally recognized. Based on the analysis and study the current computer-aided instruction (CAI) status on the basis of research and development based on the Authorware Flash multimedia learning system. The article on the whole multimedia courseware design and development carried out a detailed exposition, including the pre-feasibility analysis, material prepared for the latter part of the human-computer interaction control mode, the system's commissioning and maintenance. Implementation of the system in the process of in-depth study of the Authorware WebXtra technology, called an external file technology, focused on the Flash content of study and practice will be applied to the "Flash 2004" programme, the successful realization of a classroom demonstration - Courseware. Through this system on the knowledge, use of presentations, interactive use of the model, allowing students to study with interest, to achieve a better teaching results, students formed a fairly complete system of flash learning courses. The teaching aids to the practical application of genuine software in teaching, teaching will have great effect change.