Endoscopic ultrasound-guided hepaticogastrostomy (EUS-HGS) is increasingly utilized for benign biliary diseases in cases with surgically-altered anatomy, but stent migration is a potential adverse event. Herein, we present successful retrieval of a migrated hepaticogastrostomy stent through a newly created EUS-HGS route using a digital cholangioscope. A 71-year-old man with a history of extended right hepatectomy for hilar cholangiocarcinoma was referred for treatment of intrahepatic biliary stones. Since stone extraction under enteroscope-assisted ERCP at an outside hospital failed due to multiple intrahepatic stones, we decided to perform EUS-HGS. After plastic stent placement in the bile duct at the segment 2 in the initial session, stone extraction was attempted through the fistula in the second session. Since stone extraction was incomplete due to both multiple stones and technical difficulty, we planned to perform extracorporeal shock wave lithotripsy using a nasobiliary catheter. During nasobiliary catheter insertion following placement of a 7-F straight-type plastic stent as HGS, we encountered stent migration into the fistula tract due to the interference between the two tubes. Although there was no risk of bile peritonitis due to the mature fistula, additional EUS-HGS in the segment 3 was performed to prevent cholangitis. After fistula maturation, the fistula was balloon dilated, and a digital cholangioscope was inserted. Under direct visualization, the migrated stent was readily grasped using a dedicated mini snare and successfully retrieved. Finally, stones were extracted using electrohydraulic lithotripsy under direct cholangioscopic visualization. No procedure-related adverse event occurred. Although stent dislocation can be a serious adverse event during interventional EUS and may need a surgical intervention, cholangioscopy-guided removal of a migrated stent through another route can be a non-surgical salvage option as we previously reported in EUS-guided pancreatic duct drainage.