The precautions before kidney stone surgery are as follows: 1. Evaluate the patient’s physical condition through preoperative examination, including blood routine, urine routine, CT, and intravenous pyelography, to assess the patient’s physical condition and stone condition, and make a good foundation for the next step of the surgery; 2. Need to treat the patient’s underlying diseases, such as patients with hypertension and diabetes, need to control the patient’s blood pressure and blood glucose steadily After further surgery; 3, strengthen the preoperative perioperative education work, tell the patient in the perioperative period of surgical contraindications; 4, patients are required to fast for 10 hours before the operation, 4 hours before the operation, no water; 5, some of the surgical modalities also need to be given to the patient before the operation of enemas or through the use of laxatives to empty the intestinal tract; 6, the patient should pay attention to rest before the operation, to maintain a good physical strength.