The function of Da Ding Feng Zhu is to nourish Yin and quench wind. Clinically, Da Ding Feng Zhu is often used to treat common diseases, such as post-stroke, hyperthyroidism, neurological tremor, and post-encephalitis, which can manifest as Yin deficiency and wind movement. In addition, for senile limb tremors, the application of Da Ding Feng Zhu is very effective in slowing down the degree of aging of patients, regulating abnormal impulses of nerves, and is very beneficial in preventing cerebral thrombosis and improving the smooth flow of meridians. Da Ding Feng Zhu must pay attention to the dosage in clinical application so that it does not cause unnecessary damage such as diarrhea and indigestion due to large amount of nourishing Yin that leads to damage of spleen and stomach functions.