Disclosed are an MBMS bearer-based method and system for querying a node state in cluster communication and a storage medium. The method comprises: a cluster service application server transmits to a network node employing a multimedia broadcast multicast service (MBMS) bearer for transmitting a cluster service a request message for reporting a node state, receives node state information reported by the network node, selects, on the basis of the node state information, a mode for transmitting the cluster service, and mitigates impacts of congestion or overload on a target UE receiving the cluster service; the node state information comprises a congestion/overload identifier, an MBMS service area identifier, an MBMS service identifier, a congestion/overload start/end identifier. The technical solution of embodiments of the present invention mitigates the impacts of congestion or overload on the cluster service, thus enhancing user experience with the service.