A method and system for implementing an interactive Ring Back Tone service are disclosed, and the method includes: obtaining (S101), when connecting a call, subscription information of an interactive Ring Back Tone service subscribed by a user; issuing (S102), when a called terminal is idle, to the called terminal a first subscription identifier for identifying an interactive Ring Back Tone service subscription of the user, where the first subscription identifier is for instructing the terminal to wait for playing of an interactive Ring Back Tone; and playing (S103), according to the interactive Ring Back Tone service subscribed by the user, the interactive Ring Back Tone to the called user.