Embodiments of the present invention provide a method for synchronizing content and relate to the field of communications. The method includes: determining, by a synchronization server, a terminal device that needs to perform content synchronization; determining, by the synchronization server, a unique identifier of the terminal device that needs to perform content synchronization and a unique identifier of a synchronization application; and sending, by the synchronization server, a synchronization message to a push server, where the synchronization message includes the unique identifier of the terminal device that needs to perform content synchronization, the unique identifier of the synchronization application, a command word, and auxiliary information, where the command word is used to indicate a synchronization operation that needs to be performed by the terminal device that needs to perform content synchronization, and the auxiliary information includes a necessary parameter for implementing the synchronization operation.