The invention discloses an IMS telephone terminal call record centralized sorting method and system. The method comprises the following steps: forwarding flow data on a network switch port where a core network element P-CSCF and an AGCF of an IMS are located to a specified port through a mirror image; stripping the SIP message from the flow data packet; and analyzing the SIP message, extracting akey field from the SIP message, integrating corresponding call records through the key field, and sorting out the call records of the IMS telephone terminal. According to the invention, the call records of the IMS telephone terminal can be sorted in real time, and support is provided for call record query service.