Radical surgery for gastric cancer refers to the surgery that removes the primary tumor together with metastatic lymph nodes and infiltrated tissues around the tumor at one time, so that no tumor remains anatomically or pathologically, thus making it possible to cure the tumor. In clinical practice, there are two types of surgery, absolute radical surgery and relative radical surgery, according to the thoroughness of tumor radical treatment. Taking early to mid-stage gastric cancer as an example, the former refers to postoperative pathological confirmation, such as metastasis in the lymph nodes of the first station, surgery beyond this station to do removal of lymph nodes including the second station (D2), D>N, while relative radical surgery refers to lymph node removal only to the station with metastasis, but not beyond this station. Strictly speaking, for gastric cancer with plasma membrane invasion, even if radical surgery is performed, it can only be relatively radical surgery because of the possibility of tumor cells escaping and implanting in the abdominal cavity. With the continuous improvement and maturity of laparoscopic technology and the deepening of surgeons’ understanding of minimally invasive concept, the application of laparoscopic technology in gastrointestinal tumor surgery has been widely popularized and promoted. And the application of laparoscopic technology in gastric cancer surgery has also become a hot issue explored and discussed by gastrointestinal surgeons in recent years. Because of the strong specialization of radical gastric cancer surgery and the technical difficulty of laparoscopic technology application, the application of laparoscopic gastric cancer surgery technology in gastrointestinal surgery at home and abroad is still limited to a certain range. The concept of laparoscopic radical gastric cancer surgery, to be precise, is to apply laparoscopic technology to complete the traditional radical gastric cancer surgery. It is the product of surgeons combining a new technology with the traditional surgical approach. And according to the different characteristics and methods of laparoscopic technology application, it can be divided into 3 types of surgeries, such as completely laparoscopic gastric cancer surgery, laparoscopic-assisted gastric cancer surgery and hand-assisted laparoscopic gastric cancer surgery (HALS). After more than 10 years of clinical practice and experience, laparoscopic-assisted gastric cancer surgery is the most applied in the Department of Surgery I. It fully reflects the superiority of minimally invasive and the effectiveness of radical gastric cancer surgery. For skilled laparoscopic surgeons, under the laparoscope, the surgical field is magnified about 10 times, and the operator can clearly observe the fine structure of tissues, and the control of lymph node dissection and surgical trauma has reached the perfect level, and due to the minimally invasive feature of laparoscopic surgery, the blow to the patient’s organism is reduced to the minimum. The long-term curative effects of laparoscopic radical gastric cancer surgery have reached or surpassed those of traditional open surgery. The perfect combination of radical resection and minimally invasive concept of laparoscopic radical gastric cancer surgery will bring gospel to the patients.