Angelica Paeoniae Tang comes from a formula for treating gynecological abdominal pain in Zhang Zhongjing’s Treatise on Typhoid Miscellaneous Diseases, and consists of six herbs: Angelica, Paeoniae, Chuanxiong, Rhizoma Atractylodis Macrocephalae, Fu Ling, and Ze Di. Among them, Angelica sinensis, Paeonia lactiflora and Chuanxiong can nourish and invigorate the blood and nourish the blood, while promoting the blood flow. Atractylodes macrocephala, Fu Ling and Ze Diarrhea are drugs that strengthen the spleen and permeate dampness and diuretic, which can treat the water-dampness stagnation in the body. Therefore, the overall therapeutic principle of this formula is to nourish the Blood, invigorate the Blood, diuretic and dampness, and relieve pain. It is suitable for the condition of mutual stasis and water stagnation, with clinical manifestations of abdominal pain, withered face or anemic face, accompanied by swollen limbs, low urine volume, pale and fat tongue, slippery or greasy coating, and tongue with teeth marks. It can be used to treat abdominal pain during menstruation, heavy menstruation, fatigue and weakness, or for long-term chronic abdominal pain and discomfort in women, and abdominal pain during menstruation and pregnancy. However, in the case of abdominal pain during pregnancy, it should be applied under the guidance of a professional herbalist.