Stomach cancer metastasized to the abdominal cavity is not hopeless. Stomach cancer metastasized to the abdominal cavity indicates that stomach cancer has already developed into advanced stage, and patients can take comprehensive anti-tumor treatment such as chemotherapy combined with targeted drugs under the guidance of doctors, or nutritional support to promote the recovery, improve the quality of life and prolong the survival period. 1. Systemic chemotherapy combined with targeted drugs: after gastric cancer metastasizes to the abdominal cavity, according to the patient’s willingness to be treated, platinum oxalate combined with fluorouracil or combined with capecitabine can be used for postoperative adjuvant chemotherapy, and cisplatin combined with fluorouracil can be used for combined chemotherapy program. 2. Nutritional support: if the patient’s physical condition is relatively poor, give gastrointestinal nutritional therapy in time to promote recovery, fat emulsion, amino acid, electrolytes, trace elements, etc. Through appropriate parenteral nutritional infusion, to maintain the body’s water-electrolyte balance. Patients can eat more food rich in protein, such as eggs, beans, milk, mushrooms, etc.; or they can eat more high-calorie meals that are easy to digest and absorb. Maintain an optimistic mindset and actively cooperate with doctors for treatment to improve the quality of survival and prolong the survival period.