"Yifangjijie" is a collection of prescription in Traditional Medicine, which was published in Qing dynasty. In this book, effectiveness of prescriptions 1s described by means of Meridians uniquely compared with any others. Therefore, I tried to pay attention to those explanations and arrange by Meridians and effectiveness of prescriptions. Classification by effectiveness of prescriptions has a few points of emphasis in Meridians and Classification of Meridians by effectiveness of prescriptions has intent in somehow. In this paper, authors will explain those classification.