Tumor patients often suffer from loss of appetite and difficulty in food intake due to the influence of radiotherapy, chemotherapy and psycho-psychological factors in their illness and treatment, which leads to weight loss and weakness, and thus patients have less activity and worse appetite, thus forming a vicious circle and prompting the body to have a serious reduction in resistance to disease, leading to or accelerating disease deterioration. Therefore, it is especially important for tumor patients to cooperate with food therapy, which has the auxiliary effect on tumor treatment. What is good for tumor patients to eat? Reasonable combination of food and maintain a balanced diet. It is important to pay attention to the change of food types, which are light, suitable and nutritious. The color, aroma and taste are good to stimulate the appetite and promote the digestion and absorption of nutrients, and the color, aroma and taste are more important for tumor patients. New rice porridge cooked with soy sauce and radish is very suitable for advanced tumor patients who have poor appetite, and rice cooked with miscellaneous grains such as corn also has beneficial effects. The choice of dessert is also very important. Foods that are flat and tonic, such as cinnamon and red dates, are often used. During the post-surgical recovery period, foods that nourish qi and blood and adjust the functions of the spleen and stomach should be used. In addition to lotus hearts and red dates, white sugar glutinous rice porridge can also be used as a tonic, and it can also treat common post-operative symptoms such as excessive sweating and restlessness at night. In addition to tonicity, foods that are aerating and help digestion, such as hawthorn and kumquat, should be added to facilitate the recovery of digestive function after surgery. In the course of radiotherapy, food therapy should be mainly to appetite and increase appetite. The diet should be light, tasty and nutritious. In the late stage of radiotherapy, there is often a loss of fluid, so the diet should be increased to nourish Yin and produce fluid; after radiotherapy, there will be various radiation reactions, so the diet should try to reduce the reactions as much as possible. In the distant stage, other treatments such as biological therapy and Chinese herbal medicine should be supplemented to avoid the recurrence or metastasis of tumor with good effect. Chemotherapy should be based on tonifying qi and blood, such as chicken and duck blood soup, but attention should be paid to digestive problems. For reduced appetite, appetizing and digestion-aiding foods are available. Nausea, vomiting can be used as appropriate ginger, with sauce ginger often chewed can get better results. When the tongue is thick and greasy, use ginger slices to lightly rub the tongue. At the end of chemotherapy, besides paying attention to tonic food, it is also necessary to pay attention to improve physical fitness to prevent metastasis or recurrence. The above is the introduction of diet for tumor patients. Tumor patients want to prolong their survival not only by treatment, but also with a reasonable and nutritious diet, which is doubly effective for patients.