The elderly constipation can take lactulose oral solution, compound polyethylene glycol, domperidone or consumption of probiotics, but can not guarantee rapid defecation, to take their own situation prevail, the drug should be taken in accordance with medical advice. Constipation in the elderly is mostly due to the decline in gastrointestinal power in the elderly, intestinal peristalsis is weakened, resulting in weakened digestive function caused by constipation. 1. Lactulose oral solution and compound polyethylene glycol have the effect of laxative, can promote the elderly defecation, and is not easy to appear other adverse side effects, but pay attention to the dosage, need to strictly comply with medical advice. 2. Domperidone can improve gastrointestinal dynamics, promote digestion and absorption, alleviate the symptoms of indigestion in the elderly, and enhance intestinal peristalsis can also promote defecation. 3. Consumption of probiotics can promote the balance of intestinal flora, increase intestinal immunity, promote digestion and absorption, and promote defecation. The elderly due to gastrointestinal power decline, so it is recommended to eat more vegetables and fruits, avoid hard food, etc., repeated constipation, it is recommended to timely hospital consultation.