Multicast service processing method and system

Multicast service processing method and system, the program configured to bind individual user permissions for the default template and / or prefabricated combinations of program packages and rights template for each user, a special mark is provided as the privileged user, the user is received after the user port identification and on-demand program, the user program and the user demand controlled multicast port identifier passed module; non-specific marker of a user to traverse the template user having the user port identity has been bound by all of the controlled multicast module and gain a current user permissions on-demand programming; if the user does not have permission to not forward; if it is specially marked user or authorized user, forwarding module forwards the program stream to the user interface when the program has been forwarded directly by the multicast stream, or by multicast protocol processing module requirements to the upstream router forwards the user on-demand programs. The method and system according to the present invention, compatible multicast service program packages and individual programs, and proposed treatment privileged users.