Idiopathic tremor belongs to the category of tremor syndrome in traditional Chinese medicine, Da Ding Feng Zhu can treat tremor syndrome caused by yin deficiency and wind movement, but the drug should be used in accordance with the doctor’s instructions. Da Ding Feng Zhu is composed of raw tortoise board, white peony, Colla Corii Asini, dried dihuang, raw oyster and hemp kernel, etc. It has the effect of nourishing yin and quenching wind. It has the efficacy of nourishing Yin and extinguishing Wind, and is used in treating Yin deficiency and Wind-driven syndromes manifesting as blending of the hands and feet (spasm of the hands and feet, slanting of the mouth and crookedness of the eyes), emaciation of the body, and reddish-red tongue with scanty fur on the tongue. In this formula, Chicken Zi Huang and Colla Corii Asini nourish yin and nourish fluid to quench internal wind (caused by abnormal function of internal organs); Radix Rehmanniae Praeparata, Rhizoma Ophiopogonis, Radix Paeoniae Alba nourishes yin and softens the liver; Tortoise Plate, Turtle Shell, Oyster cultivate yin and submerges yang; Herba Armeniaca nourishes yin and moistens dryness; Schisandra Chinensis and Glycyrrhizae radix are acidic, sweet and transform yin. The combination of these herbs can nourish yin and nourish fluid, soften the liver and quench wind (regulating the function of the liver to get rid of internal wind). Tremors can be treated with this formula if the diagnosis belongs to yin deficiency and wind movement, and it is recommended that the patient consult a doctor in time and follow the doctor’s instructions.