The Department of Gastroenterology of Qingda Hospital successfully performed endoscopic submucosal dissection for a patient with early gastric cancer combined with early esophageal cancer, which resulted in complete removal of the lesion without incision. Li, a 72-year-old patient living in Jilin Province, felt discomfort in his upper abdomen in the past two months and was found to have early gastric cancer after gastroscopy in a local hospital. The patient heard that the endoscopic diagnosis and treatment of early gastrointestinal tumors in the Department of Gastroenterology of QUH was at the forefront of the country, so he came to see the doctor. After receiving the patient, Dr. Zhao Qingxi, the chief physician of the Department of Gastroenterology of QUH, reviewed the patient’s gastroscopy and confirmed the diagnosis of early gastric cancer in the local hospital. Faced with the result that the old man had both early gastric cancer and early esophageal cancer, the old man’s children were very anxious, but were overjoyed to hear that both lesions could be removed endoscopically. Tian Zhibin, director of the Department of Gastroenterology, organized an intra-departmental discussion and made a detailed surgery plan for the patient. It is understood that with the good cooperation platform with the Department of Gastroenterology of Kobe University in Japan, Qingda Hospital has pushed the level of endoscopic diagnosis and treatment of early gastrointestinal cancer to the forefront in China. This time, both early esophageal cancer and early gastric cancer were removed in one operation, marking a new level of endoscopic diagnosis and treatment technology for early gastrointestinal tumors in the Department of Gastroenterology of QDUH.