The application provides a resource allocation method and device, wherein an eNB receives channel state indication information reported by UE, and determines a second transmission cycle according to the channel state indication information, so that after the eNB allocates resources to the UE, the eNB adjusts the transmission cycle of the resources by combining the channel state in the transmission cycle corresponding to the resources, namely, the resources are reallocated to the UE, and whether the count value is 0 or not is not considered, so that the allocation of the resources is more reasonable, and the resource utilization rate is improved.