Intestinal obstruction caused by colon cancer belongs to mechanical intestinal obstruction, which is mainly due to the narrowing of intestinal tract triggered by tumor lesions, and the passage of intestinal contents is obstructed. Treatment methods for such patients include surgery and drug treatment. 1. Drug treatment: drug treatment is mainly to correct the disturbance of water, electrolyte and acid balance, supply nutrition and prevent infection. It is generally not recommended to use laxative drugs to avoid aggravating the condition of patients with colon cancer intestinal obstruction. The main drugs used include saline, glucose injection, amino acid injection, broad-spectrum antibiotics and so on. 2. Surgical treatment: clinically, the main surgical methods for intestinal obstruction caused by intestinal tumors include intestinal resection, intestinal anastomosis, intestinal short-circuit anastomosis and so on. If the diagnosis of intestinal obstruction is confirmed, it is recommended to carry out standardized treatment as early as possible in order to reduce the adverse effects of the disease.