Abstract: Tall gastrodia Tuber,a perennial symbiosis plant,is a kind of commonly used and expensive traditional Chinese medicine.Materia medica records a lot about its function and processing methods,but the literature are rather scattered.In order to provide a reference for standard processing,this article reviews the situation of processing standards,incomplete test data,backward inspection standards,and inconsistent quality of medicine materical crude slices of Tall gastrodia Tuber.