Separated islandtype station is an new structure of Metro station. First, the author analyzes the design principles and concepts of Metro station. Then, taking the design, construction and decoration of Gongtibeilu (Tuanjiehu) station on No. 10 line of Beijing Metro as an example, the author analyzes the design, application and problems of separated islandtype station and discusses the advantages of the design scheme of separated islandtype station. This paper can provide references for the similar projects in the future.