Objective To investigate the role and value of the biliary stent in the treatment of large common bile duct stones. Methods Thirty-two patients with large common bile duct stones were underwent plastic biliary stenting after endoscopic stone extraction with oddi sphincterotomy, and were followed up for 6 months. Results Thirty-two patients were successfully placed biliary stents. The postoperative jaundice, abdominal pain and other symptoms were alleviated. The secondary endoscopic retragrade cholang iopancreatography (ERCP) was performed six months after surgery. Large stones disappeared in 3 cases, 25 cases were reduced to varying degrees, 4 cases showed no obvious narrowing in 32 patients with biliary stones. Twenty-nine patients with residual stones were taken stone again. The operation was successful in 25 cases . Four cases continued to be observed the drainage of biliary since the difficulties for taking stone. The success rate of treatment of large common bile duct stones by biliary stent was 87.5%. Conclusion The therapy of large common bile duct stones by biliary stent is of simple, short operation time, fewer complications, satisfactory results, safe and effective advantages.