This study aims to systematically develop a CAI model for vocational high school and develop a CAI model for VHSs which is valid, practical, and consistency and see CAI of aspects of the display, programming, materials, and aspects of learning This study was a research and development study for the program of electric energy use in VHSs of Technology expertise in program of Electrical Engineering. This study was carried out in three state VHSs in Makassar and Gowa. The results of the study are as follows: Systematic steps in developing a CAI model for VHSs began with a preliminary study in the form of a needs analysis for the client, followed by a learning system design and lesson planning, and materials development; Learning aspect, content aspect, display aspect, programming aspect; the integration of learning methods made through the strategies in CAI, namely Tutorial, Drill & Practice, Games, Problem Solving, Simulation, and Testing; Integration of constructivist learning theory in the development of CAI in VHSs models made through the interactivity of the CAI program was developed in the form of Interactive CD; The users’ responses to the CAI product were very good; The developed CAI model was valid, practical, and consistency.