Abstract
For countless time, many have been made in our oriental medicine. To understand such prescription and to use, we must study the monarch(jun), minister(chen), adjuvant(zou) and guide(shi) theory that is most of the prescription structure principle's the basis. The monarch is the center of the prescription. Two kind is greatly in the method to select the monarch, in the prescription. One method is that a medicinal herb of the high class of medical herb of the Sinnong's Classic becomes the monarch, and the other method is a medicinal herbs which there is most many qunantity in the prescription becomes the monarch. Additionally, a medicinal herbs name of a prescription name can become the monarch. The minister assist the monarch and this is a criteria of the prescription grouping with the monarch. The minister has close relation with the monarch. The adjuvant helps the monarch and the minister nature of drug or restains. So this makes the prescription effectiveness act accurately. The guide does the activity to help the harmony of the prescription and the activity to help the prescription to act in correct place. If we understand the monarch, minister, adjuvant and guide theory well, we have some advantage. The interpreting of the prescription comes to De easy. and, an application range of the prescription is enhanced. the increase and decrease of the medicinal herbs comes to be easy in the prescription. Finally that theory will be used for the principle to make new prescription.