The present application provides a data transmission method and apparatus. The present application comprises: a base station determining a number N of physical shared channels scheduled by a downlink control channel, said N physical shared channels having different coverage enhancement levels and/or number of repeated transmissions, and N being an integer greater than 1; said base station sending said downlink control channel, said downlink control channel carrying the scheduling information of the N physical shared channels. Since the downlink control channel carries scheduling information of the physical shared channels having different coverage enhancement levels and/or numbers of repeated transmissions, the physical shared channels having different numbers of repetitions are sent independently, preventing the occurrence of a resource conflict concerning the data transmission scheduled by the downlink control channel.