The present application provides a method and apparatus for transmitting synchronization signal blocks, the method comprising: determining M target frequency domain locations for carrying M synchronization signal blocks within a broadband component carrier, where each of the target frequency domain locations is used for carrying one synchronization signal block, and M is a positive integer greater than or equal to 1; transmitting the M synchronization signal blocks to a terminal device on the M target frequency domain locations. The method for transmitting the synchronization signal blocks provided by the present application can implement transmission of multiple synchronization signal blocks within a broadband component carrier, thus meeting the requirements of new radio communication system.