Patient Deng X, female, 81 years old, was admitted to the hospital with “black stool for 1 day”. In the past 2 years, the patient had been admitted to the hospital several times for gastrointestinal bleeding, and had undergone gastroscopy showing chronic superficial gastritis and colonoscopy suggesting colonic polyps (electrosurgical biopsy). BP103/61mmHg, anemic appearance, flat and soft abdomen, no pressure pain and rebound pain, active bowel sounds, routine blood: HGB58g/l, abdominal CT suggested right lower abdomen occupying lesion, capsule endoscopy suggested small intestinal mass and bleeding, recurrent blood in stool even after conservative treatment by internal medicine, active bleeding was considered, so he was transferred to our department, after perfecting perioperative preparation, laparoscopic exploration was performed under endotracheal anesthesia, intraoperative showed The patient recovered well after surgery, and the pathology suggested small intestinal mesenchymal tumor; the patient recovered well after surgery and did not show blood in stool at follow-up. This case fully reflects the advantages of laparoscopic surgery in abdominal diseases: 1. laparoscopic exploration of abdominal diseases with unknown diagnosis can help diagnosis and treatment.