A method for broadcasting configuration information of a synchronizing signal block includes: the maximum number of synchronizing signal blocks that can be transmitted is determined; the number of bits of configuration information to be generated is determined according to a relationship between the maximum number and a first preset value, and the configuration information comprising said number of bits is generated, in which the configuration information is configured to indicate a synchronizing signal block required to be transmitted in the maximum number of synchronizing signal blocks, and the first preset value is positively correlated with the number of bits that can be transmitted by a physical sidelink broadcast channel; and the configuration information is broadcasted by means of the physical sidelink broadcast channel.