The present invention discloses a method for triggering a nesting service, which relates to the technique of broadband service triggering and service nesting. The present invention is proposed for solving the problem that the existing nesting service occupies more system bandwidths, wherein the method includes: when receiving a call request of a nesting service in a normal service flow, determining a service key of the nesting service according to a called number of the nesting service, taking the service key as a call access object, converting the call request of the nesting service into a call access message in a service platform where a normal service is located, and triggering the nesting service in the service platform. The present invention further discloses an apparatus for implementing the previously mentioned method. The present invention reduced the bandwidth resources consumed by the nesting service, and the scheme is simple and practical.
