Embodiments of the present invention provide a cluster service processing method and a Multicast Coordination Entity (MCE). The cluster service processing method comprises: an MCE receiving a multicast session start request message sent by an upstream device, wherein the multicast session start request message comprises a cluster service instruction; and the MCE, based on the cluster service instruction, allocating a Multimedia Broadcast Multicast Service (MBMS) air interface resource for a cluster service, wherein the allocated MBMS air interface resource can make a resource interval in which cluster service data can be scheduled not exceed an air interface delay requirement. The embodiments of the present invention can meet cluster service requirements that have a strict requirement on a delay such as voice call, interaction video and the like.