A file synchronization method may comprise establishing a connection with a second electronic device and performing a first synchronization operation and/or a second synchronization operation. The first synchronization operation may comprise interacting with the second electronic device to synchronize a first synchronization file from the second electronic device to the first electronic device, and to record a first piece of file source information for the first synchronization file, wherein the first piece of file source information is to identify that the first synchronization file comes from the second electronic device. The second synchronization operation may comprise selecting a second synchronization file from the first electronic device, and interacting with the second electronic device to synchronize the second synchronization file to the second electronic device, wherein the second synchronization file includes a second piece of file source information to identify that the second synchronization file corresponds to the second electronic device.