A method and a system for providing a video service for distributing a plurality of multipoint control units (MCU) in an MCU cluster to forward the video service via a controller are provided. The method includes, through a first MCU among the MCUs, receiving the video service published by the publisher terminal. The method also includes forwarding the video service from the first MCU to at least one second MCU among the MCUs, and establishing at least one nice connection corresponding to the video service in the second MCU. In addition, at least one subscriber terminal receives the video service through the at least one nice connection. Accordingly, the method can provide sufficient resources of the video service to the subscriber terminals by dynamically distributing system resources of a plurality of the MCUs.