Abstract: The situation of switch machine type and installation method in domestic rail transit projects is studied. Targeting the existing problems in urban rapid rail transit line switch machine installation, a pallet\|type switch machine installation process suitable for urban rapid line is proposed to alleviate the current high\|frequency malfunction in switch machine application and to extend the lifespan of the switch machine. The application of this technology helps urban rapid line to overcome the impact of shock and vibration on switch machine caused by its high\|speed feature, improving the service level and efficiency of urban rail transit line operation, meeting the growing trend of recognizing urban rail transit safe and efficient service.