If there is no contraindication for renal pelvic stone 1.6cm, it can be treated by extracorporeal shock wave lithotripsy, ureteroscopic lithotripsy and percutaneous nephrolithotripsy. 1. Extracorporeal shock wave lithotripsy: it is mainly applicable to kidney stones with diameter ≤2cm and upper ureteral stones, and renal pelvis stone 1.6cm is in line with its indications. Extracorporeal shock wave lithotripsy is the use of high-energy shock wave focusing in order to crack and crush the stone. This method is contraindicated if the patient has a stone distal to the urinary tract obstruction, pregnancy, severe cardiovascular and cerebrovascular diseases. 2. Ureteral lithotripsy: mainly used for the treatment of stones with a diameter of <2cm. Mainly through the reverse pathway, the ureter is placed into the flexible mirror under direct vision for stone extraction and lithotripsy treatment. This method is not suitable for patients with severe ureteral stenosis or distortion, or patients with hemorrhagic disease. 3. Percutaneous nephrolithotripsy lithotripsy: it is generally applicable to most of the kidney stones that need surgical intervention. Under ultrasound and other localization, a puncture is made through the back of the waist to establish a skin-to-kidney channel, and stone extraction and lithotripsy are carried out under the nephroscope. This method is contraindicated in people with coagulation disorders and who are too obese for the puncture needle to be localized. If you have renal pelvic stones, it is recommended that you consult a doctor in time and choose the appropriate treatment plan according to your condition under the doctor's guidance.