〔Abstract〕 Shanghanlun gives a detailed description of the processing, dosage form, dosage, decocting method, as well as the taking and precautions of medicines, which is later summarized as Zhang Zhongjing's "JiangXi Fa". Through reviewing the literature, it is found that Zhang Zhongjing's "JiangXi Fa" is a method of recuperation, aftercare and nursing, as well as the start and stop of disease treatment, and the treatment principle of personalized treatment for individual diseases and the treatment principle of stopping the disease immediately. Zhang Zhongjing's "JiangXi Fa" includes the preparation of drugs, the method of taking medicine and the maintenance of health care. The clinical application Zhang Zhongjing's "JiangXi Fa" can improve the curative effect, reduce side effects, care for stomach qi, and prevent disease transmission. Therefore, Zhang Zhongjing's "JiangXi Fa" is a feasible way to improve clinical effects.