Spleen deficiency in infants is often caused by improper diet, repeated illnesses, or prolonged diarrhea and vomiting. Spleen deficiency refers to a series of illnesses caused by the deficiency of spleen qi, including spleen qi deficiency, spleen yang deficiency, spleen does not regulate blood (the spleen can not regulate the blood), and central qi subsidence (the spleen and stomach qi is weak, appearing in the viscera and internal organs fall down and other manifestations) and other evidence, most often due to dietary indiscretion, inappropriate work and rest or chronic illnesses caused by the body’s weakness. One of the infant spleen deficiency is caused by dietary disorders and repeated illnesses as well as vomiting, diarrhea for a long time, in the clinic, common abdominal distension, abdominal pain, vomiting, fatigue, fatigue, yellowish color (yellowish color and lack of luster), pediatric salivation, the texture is clear, and so on. It can be treated by taking Xiangsha Liu Jun Zi Tang or Wu Wei Yi Gong San. Xiangsha Liu Junzi Tang is commonly used in the treatment of fullness in the epigastrium (abdomen), abdominal pain, vomiting, and inability to think about food caused by deficiency of spleen and stomach qi and phlegm obstruction and qi stagnation, etc. Avoid eating cold and greasy food during the period of taking the medicine. Wu Wei Yi Gong San has the effect of benefiting qi and tonifying the middle, regulating qi and strengthening the spleen (regulating qi and strengthening the spleen), and is commonly used in the treatment of symptoms such as reduced diet, chest tightness, abdominal distension, loose stools, fatigue, shortness of breath, emaciation, or facial edema in pediatric patients caused by deficiency of the spleen and stagnation of qi. It is recommended that patients in need of treatment should seek medical advice in a timely manner and take the medicine under the guidance of a doctor.