Medical scale is the so-called toolbox of modern medicine, which helps to evaluate the severity of patients' diseases. Among them, the most used departments are psychiatry, neurology and orthopedics, and the scale of these departments is also relatively large. But at present, the use of the scale has covered all departments, and the scale is divided into self-rating scale or other evaluation scale. The authoritative scale can be obtained from professional academic platforms, medical papers, long laugh medical network and other books. Changxiao Medical Network also supports online scale planning, which is convenient to use. It can be said that the scale has become an indispensable research tool.