Patients with advanced lung cancer can eat common foods in daily life and pay attention to keep food diversification to ensure comprehensive and balanced nutrition. 1. People with chewing function: people with chewing function in advanced stage of lung cancer can basically eat normally, and their daily diet is no different from normal people. They should mainly take light, easy-to-digest and mild food, and eat high-calorie, high-protein and high-vitamin food, such as meat, eggs, milk and noodles. 2. Those with reduced or lost chewing function: if the pain is obvious in advanced stage of lung cancer, poor appetite and unwillingness to eat, the chewing function can be reduced or even lost, and the patient can not eat by himself/herself, so he/she needs to give nasal feeding tube for supplementing nutrition, and professional homogenized dietary food can be given for supplementing nutrition. If necessary, seek medical treatment, give intravenous rehydration and nutritional support treatment. If you find advanced stage of lung cancer, please go to hospital in time to receive regular treatment, and consult oncologist and nutritionist in detail.