The present disclosure provides an information transmission method and device based on a sweeping block. The method includes: configuring part of or all symbols of a data transmission subframe within a sweeping period as a sweeping block; and carrying a sweeping signal channel in the sweeping block for transmission. The sweeping signal channel refers to a signal or a signal and channel to be transmitted by polling all ports or beams. The above solution can improve flexibility and efficiency of data beam transmission and reduce a latency of traffic transmission.