There are no special taboos in postoperative diet for lung cancer patients, but the following aspects should be noted: 1. Patients need to quit smoking and alcohol, generally a small amount of low alcohol has less effect on patients; 2. Spicy and greasy food is prohibited to avoid affecting the function of digestive tract and lipid status; 3. High quality protein should be consumed, such as chicken, duck and beef, etc.; 4. Pay attention to vitamin supplementation and consume more fresh vegetables and fruits; 5. Protein powder can be supplemented moderately to improve the immunity of the body; 6.