Crohn’s disease can not be completely cured, the disease can be alleviated and improved, but easy to delay and recurrent. Crohn’s disease is a chronic inflammatory granulomatous disease of the digestive tract of unknown etiology, mostly related to the patient’s immune system abnormality, with chronic, recurrent, prolonged characteristics, patients often manifest abdominal pain, diarrhea, fever, weight loss and other symptoms. Crohn’s disease currently lacks an effective means of eradication, so it can not be completely cured, and most of the drug therapy to control the disease activity, so that the disease is in remission, to prevent complications and so on. Drug therapy mainly includes aminosalicylic acid preparations such as mesalazine and sulfasalazine, glucocorticoids such as prednisone, immunosuppressants such as azathioprine and methotrexate. Biological agents such as adalimumab. The use of drugs need to be under the guidance of a doctor, in addition, patients in disease control and remission, should pay attention to develop good eating habits, less oil, less sugar, less salt diet, take medication on time, regular review, to prevent recurrence.