Abstract: Biliary atresia (BA) is a progressive disease involving both intrahepatic and extrahepatic bile ducts. Kasai portoenterostomy is the most widely used treatment strategy for BA. However, about 60% of the patients treated by Kasai operation have poor postoperative outcomes and still need liver transplantation in the future. Although the factors affecting the postoperative survival of children with BA are closely related to the BA classification, the surgical method (laparoscopic or traditional open), the age at the time of surgery, and liver lesions at the time of surgery, the adjuvant therapy after BA is still an area that can be improved to a great extent. In recent years, there have been many reports on postoperative BA, such as hormones, bile acid metabolism drugs, antibiotics and probiotics, etc. In this paper, the research progress of adjuvant therapy after BA is reviewed to further explore the prognostic value of adjuvant therapy in children with BA.