Meizhou city is one of the areas with high incidence of urinary stones, because the economy of Meizhou is relatively backward, the people also lack medical knowledge, and usually do not have the habit of medical examination, when the stone symptoms are serious before coming to the hospital for examination, very often encounter patients with complicated stones. Larger kidney stones often require surgical treatment, and percutaneous nephrolithotomy has been rapidly developed in recent years. Patients with stones in general can be treated by minimally invasive surgery and rarely need open surgery. The Department of Urology IV has the most advanced percutaneous nephrolithoscope, an imported color ultrasound machine for the urological system with more than 1.8 million yuan, and a physician specializing in color ultrasound. We have developed the technique of percutaneous nephrolithotomy under the guidance of color ultrasound. Adopting color ultrasound guidance during surgery has absolute advantages for the treatment of complex kidney stones: 1. Color ultrasound can identify the renal arteries and veins, and under the guidance of color ultrasound, these renal vessels can be avoided during puncture and fistula, thus reducing the damage to kidney function during surgery. 2.The color ultrasound machine has higher resolution and is clearer than the ordinary ultrasound machine, which can clearly identify the internal structure of the kidney and the location of the stone, and can accurately establish the surgical channel under the guidance of the color ultrasound. 3.At the end of surgery, because of the interference of blood clots or perinephric ooze and other factors, ordinary ultrasound machine often discriminates whether there are residual small stones. The high performance of the color ultrasound machine can effectively avoid interference and find out the stone removal, thus reducing the stone rate. The following is a picture of a male patient with a 10-year history of kidney stones. Postoperative review showed that the stone was cleared. The surgical bleeding was about 100 ml and the operation time was about 3 hours.