Advanced gastric cancer combined with intestinal obstruction is very common in clinical practice. For patients with mild intestinal obstruction, the obstruction can be relieved by itself through dietary modification. If mechanical obstruction, hemodynamic obstruction or adhesive intestinal obstruction occurs, patients need to go to hospital for medical treatment in time. Treatment through fasting, gastrointestinal decompression, enema, catheterization, regulation of water-electrolyte balance, and nutrition supplementation. Most patients can be relieved. If intestinal necrosis and infectious shock occur with the prolongation of obstruction, timely intervention by surgeons is required.