The purpose of this paper is to discuss a way of designing intelligent education system using multi-strata modeling concept. This system is composed of the new artificial intelligence technology. In this study, educational processes are assumed as model of the intelligent problem solving systems. Nowadays there are various types of problem solving depending on its object and often more than one subjects concern the same problem solving with the different roles in a complex problem solving. In order to achieve the goal in this environment, a new architecture of the system and a new modeling scheme for representing problems including human activity are discussed as well as a way of generating specific problem solving systems. Several new concepts are included in this study; a multi-level function structure and its corresponding knowledge structure, multiple meta-level operations, a multi-strata model to represent problems including human activity, etc. In this paper, authors are presenting the further discussion on the multi-strata model and, especially its application to intelligent education system.