Abstract: Taking the project of the newly built transfer passage closely under\|passing existing metro station as the background, targeting the construction procedure challenge caused by the newly\|built transfer passage adopting multi\|division excavation, the mechanical responses of existing metro station, newly\|built transfer passage, surrounding rock medium caused by three different excavation procedures are compared and analyzed using numerical simulation. Results show that: judging from the additional deformation index of the existing metro station floor, the initial support deformation of the new transfer passage, the surrounding rock mass plastic zone index, the maximum deformation value and the volume of surrounding rock mass plastic zone of Case 1 are both relatively small, therefore it is recommended to consider Case 1 as the preferred construction procedure.Key wordsmetro station; transfer passage; construction procedure; numerical simulation