Abstract
The identity realization of civil engineers is a quite essential problem. The physical educational system has been developed. On the other hand, the techniques for identity realization may not be discussed sufficiently. Therefore, the psychological test is introduced to understand the mental state of civil engineers under education. In particular, "baum test" is applied as a reasonable and practical example of psychological test. As the knowledge base for interpretation process for reflection of mental state in the "baum test", the comprehensive inference system with fuzzy reasoning is established. The system can summarize statistically the mentality of younger civil engineer. Furthermore, the psychiatric issues are pointed out as well. Finally, the advanced knowledge base in the psychological diagnostic system would be developed by analyzing the relation between identity disorder and borderline personality disorder as a current social problem.
