A synchronization management server includes a processor and a memory. The processor includes a resource control circuit, a synchronization management circuit, and an editing circuit. The resource control circuit is configured to generate an initialization page and to display an initialization page according to whether a first user identity conforms to a user with editing rights and several current editing statuses corresponding to several elements, and to generate a first post-editing message, and to set a first editing status of the first element to be locked. The synchronization management circuit is configured to determine whether to update the first editing status of the first element, and to synchronize the first editing status of the first element to several electronic devices. The editing circuit is configured to update the file. The memory is configured to store the file.