If a pregnant woman has kidney stones, the treatment is as follows: 1. If there are no symptoms, drink more water, urinate more and avoid holding urine for a long time. Pay attention to hydration when it is hot to avoid over-concentration of urine, review the urinary ultrasound regularly, and wait for delivery before dealing with the stone at a later stage.2. If there is a combination of renal colic and the pain is unbearable, then you can consider placing a stent tube into the ureter of the side suffering from the stone under local anesthesia on a trial basis. The ureteral stent tube is pushed in retrogradely through cystoscopy. If the ureteral stent tube is successfully pushed in, it can be placed until the patient delivers and then the stone can be treated at a later date. The ureteral stent tube can serve as a drain to prevent the stone from causing ureteral obstruction, which can relieve renal colic.3. If the retrograde placement of the ureteral stent tube fails, a percutaneous nephrostomy can be considered to drain the urine out of the fistula, so that the pressure in the renal pelvis decreases and the pain disappears. Waiting for the delivery of labor and delivery, then elective extracorporeal shock wave lithotripsy or surgical lithotripsy treatment of stones.