A 46-year-old male patient with crohn’s disease diagnosed 15 years ago. He was admitted to the hospital on April 28 for emergency admission due to lower gastrointestinal bleeding. After admission, with aggressive conservative treatment, the gastrointestinal bleeding resolved for a time, but reappeared on May 4, and the hematocrit dropped to 3 g with rapid blood transfusion. Colonoscopy suggested a near total colon lesion with deep ulcers in the ascending colon. After a multidisciplinary consultation and detailed explanation of the patient’s condition to the family, the patient was admitted to the operating room in the early morning of May 4 because conservative treatment for persistent bleeding was ineffective. At that time, the patient was in hypovolemic shock, and dobutamine was used to maintain blood pressure of 70/50mmHg in the room. Intraoperative investigation: large amount of purulent ascites in the abdominal cavity was about 2000ml, and the ascending colon lesion had involved the proximal plasma layer, so near total colectomy (sigmoid colon was preserved, according to the results of intraoperative colonoscopy) and terminal ileostomy were performed. Because of the large amount of hormone and the patient’s anemic and low-protein status, intraoperative phase I anastomosis was not selected, and the patient was returned to the ICU with tracheal intubation. The patient was transferred back to our ward from the ICU on the morning of the 6th. Currently, he is hypoproteinemic, hematocrit 9 g, Tmax:38.8, blood pressure is stable, there are no signs of peritonitis in the abdomen, the daily drainage is about 400 ml of ascites, which is still clear, and the stoma is ready to open today, and the hormone dosage is reduced to 150 mg/day. This case does not have many special features among the emergency surgery cases experienced, and the main reason for recording it today comes from the cooperation of many departments in the whole resuscitation process and the positive treatment attitude from the family. Such an emergency surgery requires the unified cooperation and close coordination among the resuscitation room, anesthesiology, basic surgery, gastroenterology and ICU, and the well-organized and unhurried resuscitation process is the key to a good outcome.