Liu Jianping [9] believed clinical research of evidence-based TCM should comprehensively collect and sort the relevant clinical research evidence, not only to collect industry standards, diagnosis and treatment guidelines, modern literature, ancient literature, famous TCM doctor's experience, routine diagnostic standard, but also to establish case report which is in the long-term widely used in this unit and method of diagnosis and treatment in historical records,even the expert opinion and clinical experience without systematic research and validation , and the case report which is not in the long-term widespread and therapy of historical record .These evidence can be brought into grading of clinical research evidence of evidence-based TCM as v-level evidence.