Before lung nodule surgery, you should make good psychological preparation, improve the preoperative examination, adjust the preoperative medication and correct the bad life habits. 1. Psychological preparation: keep a good mindset before surgery, do not be too nervous and anxious, and fully communicate with the doctor to understand the risks of surgery. 2. Pre-operative examination: Before the operation, under the doctor’s guidance, you should improve the blood routine, coagulation function test, those with basic diseases should also monitor blood sugar, blood pressure, cardiac ultrasound, electrocardiogram and other tests, in order to clarify whether the physical state of the body can withstand the operation. 3. Pre-operative medication: those who suffer from hypertension and diabetes should take regular medication before surgery to keep their blood pressure and blood sugar under good control; if they have been taking anticoagulant drugs such as aspirin and clopidogrel for a long period of time, they should stop taking the drugs under the guidance of the doctor for 1 week before surgery. 4. Correct bad habits: smokers should quit smoking and do deep breathing exercises. Avoid staying up late before surgery, eat a light diet and adjust your body to the best condition. The above preparations must be made before lung nodule surgery in order to improve the success rate of surgery and reduce complications.