A method of effectively managing information shared by synchronizing between a plurality of Universal Plug and Play (UPnP) devices is provided. According to the method, all devices exchange version information of the devices at initial synchronization, and when shared information stored in some of the devices is changed, a device changing shared information transmits new version information to the other devices via an event message, so that all of the devices can maintain the latest shared information. Also, by having a counter indicating an update state of respective parts of shared information, when shared information is changed by a plurality of the UPnP devices, it is easy to recognize which part from among the respective parts of the shared information is the latest.