Biliary stricture is a constriction or structural alteration in the bile duct lumen caused by a variety of factors that results in bile flow restriction. Currently, one of the most frequent procedures of treating biliary strictures is biliary stent implantation by transendoscopic retrograde cholangiopancreatography (ERCP); nonetheless, the rate of re-obstruction after traditional biliary stenting is substantial. To suit clinical needs, biliary drug-eluting stents are designed and developed with various drug coatings based on the cause of the stenosis in order to improve biliary stent patency and extend stent patency time. This article examines the classification of bile duct drug-eluting stents and forecasts the future development of bile duct-carrying stents.