Abstract
The modern medicine is very effective to mending the sickness. On the other hand, the ancient chinese medicine is effective to the health promotion so as not to become to sickness. Therefore, modern medicine and ancient chinese medicine are necessary for us to send a healthy, happy life. In this paper, we propose a home health care system based on the modern medicine and ancient chinese medicine. This system will be called a home doctor system. Because most symptoms like the pain or tiredness, etc. are vague concepts, these vague concepts are shown here by fuzzy set in the home doctor system. Moreover, the proposed distance type fuzzy reasoning method is used as a reasoning method.