Bian Que, the founder of TCM science, has made outstanding contributions to the development of TCM. The four diagnostic methods of looking, smelling, asking and feeling the pulse created by Bian Que provide a very good method for the diagnosis of diseases. This course mainly introduces the four diagnostic methods of looking, smelling, asking and feeling the pulse. By experiencing the real process of TCM diagnosis and treatment of colds, we will lead you to unlock how TCM diagnoses and treats diseases in real life, and let you feel the wonder of modern TCM four diagnostic instruments by explaining the four diagnostic instruments that can provide objective collection and analysis of TCM diagnostic information.