Patients with squamous lung cancer can consume bananas in moderation during their normal diet. Lung squamous cancer is one of the common pathological types of lung cancer, and the occurrence of the disease is related to many factors such as heredity, environment and smoking. Due to the development of tumor and the side effects brought by various treatments, all of them can cause certain consumption to patients, so they need to supplement nutrition through diet in daily life. Banana is a common fruit, which contains a variety of nutrients, such as vitamins A and C; sugar; trace elements such as phosphorus, calcium and potassium; and protein. Moderate consumption of bananas during normal diet of patients with squamous lung cancer can play the role of supplementing nutrition, improving immunity and speeding up recovery. It is also recommended to consume high protein foods such as beef and fish. It is recommended that patients keep a good mindset, pay attention to rest and actively cooperate with treatment during the treatment period.