Abstract.

The expert system is part of artificial intelligence with basic knowledge which is built to transfer its ability into computer system. In this study, the expert system is a combination of two technologies namely health technology as a basic of knowledge and information technology as interface of patient with health expert. The knowledge of health expert about diseases and herbal medicine is implemented in artificial intelligence to support in making a decision. This multi knowledge expert system is using the SQL Inference mechanism. The multi knowledge concept is made with database design, so that the expert system in this study is able to diagnosis many diseases and has more solutions in health problems. This study is using herbal medicine in order to prevent its users from poisoning and allergic of synthetic medicines.