The present invention discloses a method for transmitting a common signal and an apparatus thereof. The method includes: determining, by a first base station, a first configuration used to send a common signal; and sending, by the first base station, the common signal according to the first configuration. According to the method for transmitting a common signal and the apparatus thereof in embodiments of the present invention, a base station sends a common signal in a triggering mode, so that the common signal is sent more flexibly, thereby reducing an overhead during sending of the common signal, reducing a possibility of interference caused by the sending of the common signal to a neighboring cell, and improving user experience.