Eating any fruits can not play a therapeutic role in late stage of lung cancer, and the treatment of late stage of lung cancer is based on the principle of prolonging the patient’s life as much as possible and minimizing the patient’s pain. Fruits are rich in minerals, nutrients, vitamins, trace elements and so on, which can replenish the energy needed by human body, but they do not have pharmacological and therapeutic effects. The treatment of patients with advanced lung cancer is usually based on conservative treatment, and supportive nutritional symptomatic treatment can be adopted. Patients with advanced lung cancer who have pain can adopt three-step pain relief method; psychological guidance and end-of-life care can be assisted, which can maximize the survival rate of patients. Food can not replace medicine and does not have the effect of treating diseases. Lung cancer patients need to go to hospitals for consultation, and physicians should take corresponding treatment measures and methods according to different conditions of patients, and they can not use medicine randomly.