Provided by the present invention are a method and apparatus for transmitting a downlink control signal, the method comprising: a base station sending one or more radio frames, the one or more radio frames comprising a plurality of orthogonal frequency division multiplexing (OFDM) symbols carrying a synchronization signal, each OFDM symbol carrying a synchronization signal being sent by means of one or more downlink beams of the base station, wherein the OFDM symbols carrying a synchronization signal further carry a downlink control signal. Since the downlink control signal is arranged in an OFDM symbol carrying a synchronization signal, signaling overhead is thereby reduced.