Gastric cancer grows further and distant metastasis occurs when it reaches the advanced stage, and the organs of distant metastasis include liver, lungs, bones, abdominal cavity and so on. The most important metastatic cell is abdominal implantation metastasis. Abdominal implantation metastasis means that stomach cancer cells break through the outermost layer of the stomach wall and the plasma membrane layer, and due to the effect of gravity and daily life activities, the cancer cells are shed to the abdominal cavity, and like sowing seeds, they are shed to the peritoneum and grow in the peritoneum, forming a large number of granule-like white hard nodules. After abdominal implantation metastasis of gastric cancer, patients may have abdominal distension, the abdominal cavity will produce a large amount of ascites, and intestinal obstruction will occur. If abdominal implantation metastasis occurs, the treatment can take intraperitoneal heat infusion chemotherapy to control the tumor.