Of the esophagogastric junction adenocarcinoma (AEG) is a 1 region of the 5 cm region in the esophageal gastric junction. Due to the special anatomical location, the biological behavior of esophageal cancer and gastric cancer are not the same. Because of its wide range of lesions, the majority of the Siewert classification system will be divided into three types: I type, CM type, CM 1-5, which is the 5 cm of the CM L, which is the traditional meaning of cardiac carcinoma. In the investigators country, the majority of patients with type II and III are 2,3,4. For the resection of esophageal gastric junction adenocarcinoma, the main treatment method for the treatment of surgical treatment. The high incidence of type II and type III AEG, type III patients more than the use of the abdominal approach to the proximal gastrectomy, more than by the Department of general surgery. In patients with lesions, the lymph node metastasis is also characterized by a bidirectional transfer of the lymph nodes and the peritoneal cavity with the lesion of the two boundary. In order to ensure that the upper cut edge of the esophagus and the dissection of the mediastinal lymph nodes, the domestic more by the Department of thoracic surgery. For the part of the patients, the traditional standard surgical approach to the left thoracic approach with open phrenoesophageal, partial resection of the stomach, aortic arch esophagogastric anastomosis + thoraco abdominal 2-field lymph node dissection dissection [5,6]. The minimally invasive surgery in the treatment of esophageal cancer and gastric cancer has been widely accepted by domestic and foreign counterparts. For I type AEG patients with type Ivor-Lewis and type III AEG patients are commonly used in the treatment of gastric cancer, and the corresponding minimally invasive surgery has a certain development [7,8]. And for type II AEG patients with relatively standard minimally invasive surgery, there is no unit carried out at home and abroad. Therefore, how to choose the minimally invasive method to complete this operation is more thorough. It has become a hot research topic in the domestic and foreign doctors. It has very important clinical significance and application prospect.