Abstract:With the development of economy and culture in China, the demand for the integration of rail transit, regional commercial and cultural functional facilities is increasingly strong. There have been many large building complexes built on subways. Taking the co-construction project of Gouyang Road Station - Jinjiadu Station in Hangzhou Metro Line 4 and Plot No.35【2019】in the listed transfer notice of Hangzhou Yuhang District Government Land Reserve Center as an example, the design scheme of enclosure co-constructed for the subway and the building basement is discussed and studied. And the key problems are analyzed from the perspective of design and construction, which can be referred for the similar projects in the future.