Provided are a data retransmission method and apparatus, and a communication device and a storage medium, which belong to the technical field of wireless communications. The method comprises: on the basis of a specified retransmission identifier of a multi cast broadcast service (MBS), monitoring retransmission data scheduling of the MBS. Therefore, on the basis of signal state information received in a continuous period of time, whether to start a data retransmission termination mechanism is determined. Therefore, by means of the data retransmission method, a UE monitors, in an MBS, retransmission data scheduling of the MBS on the basis of a specified retransmission identifier of the MBS, and realizes retransmission of MBS data which fails to be received, thereby improving the reliability of data transmission.