The scripture formula is one of the marvels of Chinese medicine, which has endured for more than 2,000 years since the introduction of Zhang Zhongjing’s “Treatise on Typhoid Miscellaneous Diseases” in the Han Dynasty, and has become a kind of weapon in the treatment of diseases. However, it is well known that Jing Fang is difficult to grasp and has always been daunting for most doctors. With the rise of the Jing Fang fever in recent years, those who study Jing Fang and apply it have been sprouting up with unlimited vitality. Learning scripture to go through three realms, to reach the first realm, that is the introduction, can only be described as a preliminary entry into the world of scripture; reached the second realm, can be said to have a slight experience of scripture, can be added or subtracted variation; only into the third realm, can be said to be the scripture out of the spirit of the formula, ease of use, and entered the ideal realm. The first realm: the relative evidence of the party, the number of the “Golden Chamber Essentials of the Square” preface: “to the other side of the evidence of the right person, the application of the people, the effect if God”, is the patient’s symptoms and the Zhongshi formula in line with the original prescription, which corresponds to the symptoms, but also corresponds to the disease mechanism. The so-called according to the map to find a horse is also. As early as in the Tang Dynasty, Sun Simiao put forward the idea of correspondence between prescription and evidence. The second realm: add or subtract according to the disease, live use of the prescription “Typhoid Fever” has 113 square, “Golden Chamber Essentials” to remove the repetition of the remaining 140 or so square, this add or subtract is to seize the main square, add or subtract according to the disease, such as Gui Zhi Tang one side of the change out of dozens of squares to achieve the main evidence relative to the concurrent evidence of the different, according to the symptoms of the add or subtract, the efficacy of the different. The third realm: the good Shi ancient method, self-innovation Through repeated study, experience, clinical, mastered the essence of the prescription, has reached the degree of arbitrary, such as butchering the ox, the eye ox without all; such as the wheel flat hacking the wheel, at ease. It should be said that the prescription is the foundation, the classics is the basis, only with these conditions, can reach a new high realm. Wu Jutong in zhongjing chengqi soup on the basis of the creation of five chengqi soup, in the hot licorice soup on the basis of the creation of the restoration of the pulse soup and add and subtract restoration of the pulse soup. Wang Qingren created the Tonic Yang Returning Five Soup on the basis of Zhongjing Jianzhong Method. This is the realm of famous doctors. I hope that our colleagues who learn prescription can memorize more original texts of Zhongshi when they are young, and enter into the door, and then gradually enter into a new realm with more reading, more experience, deepening of clinical evidence, and experience of patients.