Stomach cancer, which has been one of the most common malignant tumor diseases around us, seriously endangers the health of patients! Therefore, not only the prevention work in advance is very important, but also the necessary post-operative care work needs to be paid attention to. What kind of postoperative care is needed for gastric cancer patients? As gastric cancer can cause great harm to patients, patients must strengthen nutritional care to correct the negative nitrogen balance and improve the tolerance of surgery as well as the effect of postoperative recovery. Those who can eat should be given high-calorie, high-protein and high-vitamin diet, and the food should be fresh and easy to digest. (1), closely observe the changes of vital signs to prevent the pulse count and blood pressure drop caused by bleeding and blood volume deficiency during the dry period c2, the patient takes a flat position, and after 6 hours, if the blood pressure is stable take a semi-recumbent position to keep the abdominal muscles relaxed, reduce pain and facilitate breathing and circulation. (2) Encourage patients to breathe deeply and assist them to wander sputum to reduce postoperative pulmonary complications. (3).Take blood pressure and pulse rate every half hour after surgery until the condition is stable. And observe the patient into the mental, etc., to prevent the occurrence of shock. Body temperature, respiration (4), postoperative fasting, until the recovery of bowel sounds, anal venting, clamping the gastric tube test drinking water, such as no abdominal distension, abdominal pain, can remove the gastric tube, drinking a small amount of water. The next day into a small amount of liquid diet, 50.80ml each time. 3rd day to 100-150ml each time, 4.5 times a day, if no abdominal distension and abdominal pain and other adverse reactions, 4th day semi-liquid, no milk, etc., pay attention to a small number of meals. (5), pay attention to rehydration during the fasting period, and intermittent blood transfusion should be given to those with anemia and hypoproteinemia. (6) Encourage the patient to get out of bed as soon as possible. Generally, the patient can sit up on the first day after surgery, bedside activities on the second day, and indoor activities on the third day. Early activities can increase intestinal peristalsis and promote early recovery of digestive function. Therefore, we hope that family members can pay attention to the emotional changes of patients and provide information according to patients’ needs and acceptance ability, so that patients can see hope, eliminate their worries and negative psychology, enhance their confidence in treatment, and actively cooperate with treatment and care. Therefore, diet is also something that patients with stomach cancer need to pay attention to. They should eat soft rice, choose nutritious and easily digestible food as main food and side dishes, avoid stimulating food, eat more fresh vegetables and fruits, do not eat high-fat food and pickled products, supplement iron and vitamins in appropriate amount, avoid smoking and alcohol, and have regular diet.