The present invention discloses a method and a system for implementing location service, in which the method comprises: sending a location request message from a source user to a MMSG by a MMSC; sending the location request message to a multimedia message generating platform by the MMSG; initiating a location request to an LSP by the multimedia message generating platform according to the location request message; performing location according to the initiated location request and returning a location result to the multimedia message generating platform by the LSP; generating multimedia message information according to the location result and sending the multimedia message information to the MMSG by the multimedia message generating platform; and sending the received multimedia message information to the source user through the MMSC by the MMSG. The present invention can not only reduce the requirement of the location service on terminal capability, but also more conveniently develop the location service, thereby realizing the aim of providing convenient and efficient location service to users by using multimedia message information.