The absorption function of the small intestine can be enhanced through dietary modification, appropriate massage, exercise and oral medication. 1. Dietary regulation: try to eat more high-calorie, high protein, high vitamin, easy to digest, non-stimulating low-fat food, so as to reduce the burden on the intestinal tract, thereby enhancing the absorption capacity of the small intestine. 2. Massage the abdomen: massage the abdomen can promote gastrointestinal peristalsis, enhance the absorption and digestion of the small intestine. However, the massage needs to pay attention to the intensity can not be too large, just after eating can not be massaged, adhere to the morning and evening once a day. 3. Exercise: Proper exercise can accelerate the body’s metabolism and promote the discharge of body wastes. It will also speed up the metabolism of the small intestine, so that the absorption function of the small intestine is enhanced. 4. Oral medication: you can take some intestinal probiotics, such as Bifidobacterium bifidum tetragonum tablets, etc., under the guidance of the doctor to regulate the gastrointestinal flora and enhance the absorption ability of the small intestine. If there is poor absorption ability of the small intestine, it is recommended to go to the hospital as soon as possible, under the guidance of the doctor to avoid delaying the condition.