To regulate colon cancer after operation, Chinese patent medicines can be used, and patients are advised to consult regular hospitals, choose reasonably and pay attention to review whether there are side effects. Postoperative management of colon cancer with proprietary Chinese medicines can regulate the function of gastrointestinal tract, improve the diet and nutritional status of patients, and indirectly improve immunity and therapeutic effect. The adjustment with proprietary Chinese medicines should be carried out in regular hospitals, because the composition of proprietary Chinese medicines is complicated and the efficacy is not exact, so the medicines must be used under the guidance of experienced physicians. Proprietary Chinese medicines also have certain side effects, especially liver and kidney function damage, allergies and so on, so it is necessary to pay attention to the assessment to avoid serious side effects.