Abstract：With the development of urban railroad transit network in China，the complex construction of interchange station will be a new technical problem for building the whole railroad transit network. In order to provide technical support for safe construction of Dalian road interchange station in Line 8 and Line10 in Shanghai，numerical analysis is used to simulate the whole construction process. With designing theories of deep foundation，the finite element method and ANSYS software，the deformations in main construction cases are calculated. According to the analysis，the conclusions can be drawn as follows：the asymmetric excavation and the asymmetrically chiselling-off of the diaphragm wall are the most dangerous constructions cases；the deformation of the diaphragm wall and ground should be measured during the whole construction，especially，the internal forces of the beam，plane and column in interchange connection should be measured when the diaphragm wall was asymmetric chiselled off. Some reinforcement methods such as ground reinforcement，temporary support should be used if necessary.
