Abstract: With the transformation of urban functions and the development of positioning， a large number of existing commercial building models have been unable to adapt to the changes in the consumption needs of contemporary citizens. The renewal design of this project is based on retaining the existing main building， citing scientific design concepts， using the method of "darning" urban architecture to build a new spatial order； extending urban functions to create a unique dual-core "urban living room"， while implanting more new social scenes and lifestyles； retaining the existing architectural texture and creating a unique architectural image； fully tapping the context and spirit of the place to create a charming emotional experience space of the place. It further enhances the vitality of the building space and exerts a strong urban service function.