Vomiting after chemotherapy can be relieved by adjusting diet, using antiemetic drugs, psychological counseling, etc. Meanwhile, it is necessary to prevent the occurrence of vomiting complications. Dietary adjustments: During chemotherapy, patients should eat more easily digested and absorbed food, such as yogurt, millet porridge, etc., and should not eat anything too greasy. Use of antiemetic drugs: Before using chemotherapy drugs with strong emetic effect, preventive use of antiemetic drugs such as ondansetron, aripipitant, fosaprepitant can effectively achieve the effect of antiemetic. Psychological counseling: some chemotherapeutic drugs can cause severe vomiting, malignant, will cause serious psychological counseling to the patient, family members and the doctor in charge should pay attention to appease the patient. Prevention of vomiting complications: patients using chemotherapeutic drugs in the process of prolonged vomiting will make the patient has the risk of water electrolyte acid-base balance disorders, attention should be paid to monitor whether the patient has symptoms of dehydration, timely intravenous supplementation. Patients who experience severe vomiting after the use of chemotherapy drugs should promptly communicate with the doctor in charge and follow the doctor’s instructions to adjust the chemotherapy drugs or use antiemetic agents.