A method for sending a cluster message, characterized by comprising: configuring a preamble range for random access for cluster terminals under a current cell, and a base station notifying the preamble range for random access configured for the cluster terminals to each cluster terminal through a broadcast message; when one of the cluster terminals without a words right under the current cell needs to send information to the base station, the one of the cluster terminals initiating a random access process, wherein the moment that the one of the cluster terminals initiates the random access comprises one of following: reporting state information, applying for words right, occupying words right, and releasing words right; the base station receiving a random access request initiated by the one of the cluster terminals, and if determining that the terminal transmits a cluster message through the random access process by a preamble in the random access request, then performing Msg3 authorization on the one of the cluster terminals according to a type of the cluster random access, and notifying the one of the cluster terminals of an authorization result through an Msg2; the one of the cluster terminals receiving the Msg2, forming an Msg3 according to the authorization result in the Msg2 and uplink information to be sent, and sending the Msg3 to a base station; wherein, uplink information carried by the Msg3 sent by the one of the cluster terminals comprises state information and signaling of the one of the cluster terminals; and the base station receiving and analyzing the Msg3 message, and acquiring the cluster message reported by the one of the terminals therefrom. configuring a preamble range for random access for cluster terminals under a current cell, and a base station notifying the preamble range for random access configured for the cluster terminals to each cluster terminal through a broadcast message; when one of the cluster terminals without a words right under the current cell needs to send information to the base station, the one of the cluster terminals initiating a random access process, wherein the moment that the one of the cluster terminals initiates the random access comprises one of following: reporting state information, applying for words right, occupying words right, and releasing words right; the base station receiving a random access request initiated by the one of the cluster terminals, and if determining that the terminal transmits a cluster message through the random access process by a preamble in the random access request, then performing Msg3 authorization on the one of the cluster terminals according to a type of the cluster random access, and notifying the one of the cluster terminals of an authorization result through an Msg2; the one of the cluster terminals receiving the Msg2, forming an Msg3 according to the authorization result in the Msg2 and uplink information to be sent, and sending the Msg3 to a base station; wherein, uplink information carried by the Msg3 sent by the one of the cluster terminals comprises state information and signaling of the one of the cluster terminals; and the base station receiving and analyzing the Msg3 message, and acquiring the cluster message reported by the one of the terminals therefrom.