The clinical guidelines for medical use to analyze medical records and prescriptions of the purgation，induction，that ye Tianshi′s Guide to clinical application in the case of a rich theory of purgation，Yip′s learn the ancient method，to ancestors for medical purgation theory inherited and developed，but not rigidly adhere to the ancient traditional method and flexibility. Application reflects the ye Tianshi′s purgation “to pass”，“with access to supplement”，according to the position，the disease，the severity of prioritization of different permits legislative prescriptions，pay attention to protecting academic thought，such as vaginal fluid，the evil is balanced.