Endoscopic treatment of extrahepatic bile duct stones has become very common, but endoscopic treatment of intrahepatic bile duct stones for various reasons faces many difficulties and challenges. With the birth of new equipment and the advancement of technology, endoscopic treatment of intrahepatic bile duct stones has ushered in new opportunities, including peroral cholangioscopic technology and endoscopic ultrasonography, which have shown good application prospects. It will become an indispensable and important part in the treatment of intrahepatic bile duct stones.