Tumor patients can take some protein-rich and vitamin-rich foods to help them improve their immunity. When the immunity of patients is low, they can also take some biological agents to help enhance their immune function. Food: 1. Protein-rich food: High protein diet for tumor patients can enhance their own nutritional status and thus improve immunity. Protein-rich foods include milk, soy products such as tofu and soybean skin, fresh meat such as beef and lean pork, eggs, animal offal, etc. 2. Common vitamin-rich foods such as kiwi, apples, oranges and other fresh fruits, as well as carrots, tomatoes, celery, spinach and other fresh vegetables; 3, rich in other nutrients food: patients can also eat some of the appropriate food containing trace elements, minerals, such as mushrooms, seafood and other food, multi-faceted nutrition. Drugs: 1. Biological agents: when the patient’s immunity is low, some biological agents can be taken, such as thymidine, oral tablets or subcutaneous injections, etc., to help the patient enhance immunity as soon as possible; 2. Other drugs: tumor patients can also use some drugs that directly enhance their immunity, such as transfer factor solution, to help stabilize their body condition. All the above drugs should be taken under the guidance of professional physicians. Tumor patients should have a light diet and avoid greasy and stimulating food. In addition to improving their immunity through diet and medication, they should also take walks and other appropriate exercises to cooperate with doctors to stabilize their disease as soon as possible and prevent deterioration.