We report the successful use of laparoscopy to treat a blunt pancreatic trauma (BPT) in a 33-year-old woman involved in a traffic accident. Computed tomography showed peripancreatic effusion and indicated an injury to the main pancreatic duct (MPD). Urgent endoscopic retrograde pancreatography (ERP) was performed. The ERP revealed a leakage of contrast medium from the peripheral pancreatic duct. The patient underwent drainage of pancreatic effusion using laparoscopic techniques. The patient had an uneventful course, and no complications have been detected a year after the operation. These results indicate that emergency ERP and laparoscopic drainage are appropriate for patients with peripancreatic effusion due to peripheral pancreatic duct injury.