Background: The COVID-19 policy context was characterised by high levels of uncertainty, imperfect knowledge and the need for immediate action. Therefore, governments in Europe tended to rely on expertise provided by advisory bodies to design their crisis response. Advisory bodies played a fundamental part in policy making during the crisis to optimise policy formulation. Aims and objectives: During the COVID-19 crisis, the literature on policy advice grew considerably. To grasp the main research outcomes, we conduct a scoping review that interrogates the COVID-19 policy advice literature to answer the question 'How did policy advisory bodies operate in Europe during the COVID-19 crisis?' Our review builds on a strong theoretical and conceptual basis informed by the literature on policy advisory systems, while offering a new perspective by focusing on advice and policy making during crisis times specifically. We present a review of newly established knowledge and identify what merits further study. Methods: The scoping review follows a strict protocol informed by Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines to capture the literature published between 2020 and 2023. We searched two databases, Scopus and Web of Science. The grey literature was excluded. Findings: In total, 59 academic outputs inform this review. Overrepresented in our review were qualitative studies, studies about the UK and Sweden, and studies that examined the first half of 2020. Our review shows that the academic community has focused on advisory body composition, body structure and the advisory process. Discussion: Avenues for further research include the independence and influence of advisory bodies, and the fate of bodies set up during the crisis.