Abstract: Living systematic review (LSR) is a systematic review methodology that incorporates regular updates to integrate new evidence, aiming to rapidly reflect the latest research findings. Although LSRs are in- creasingly adopted in clinical fields, their reporting quality remains inconsistent and lack of standardized guide- lines. To standardize LSR reporting, the PRISMA 2020 statement has released an extension checklist (PRISMA-LSR). This paper describes the background of PRISMA-LSR release and main revisions, and inter-prets it with examples, with the goal of guiding future LSR research and enhancing reporting quality.