This study describes an overview of the POSCO’s Baosteel’s short-flow(BSSF) slag processing project,including process flow,process set-up,equipment composition,auxiliary facilities and relevant parameters,as well as a brief description of its application after commissioning. This study describes an overview of the POSCO’s Baosteel’s short-flow (BSSF) slag processing project, including process flow, process set-up, equipment composition, auxiliary facilities and relevant parameters, as well as a brief description of its application after commissioning.