A method, operable in a controller, for sharing data between network electronic devices (110, 120, 130, 140), the method comprising: searching for network electronic devices (110, 120, 130, 140) belonging to the same network as a user device, when an input for performing a data sharing function is sensed; classifying the searched network electronic devices (110, 120, 130, 140) into transmission side network electronic devices and reception side network electronic devices; allotting the searched network electronic devices (110, 120, 130, 140) to a first region of a display for receiving data and a second region of the display for transmitting the data, respectively; and configuring a user interface for a data sharing function based on the network electronic devices (110, 120, 130, 140) allotted to the first region of the display and the second region of the display, wherein the user interface comprises: an item representing respective network electronic devices (110, 120, 130, 140) allotted to the first and second regions, and an object indicating a direction for moving data; and a reception item arrangement space and a transmission item arrangement space, and wherein the method further comprises: in response to user input interaction operations, moving items representing a plurality of selected reception side electronic devices from the first region of the display to the reception item arrangement space, and moving items representing a plurality of selected transmission side electronic devices from the second region of the display to the transmission item arrangement space; and controlling data sharing according to the user interface by controlling moving of data from the plurality of selected transmission side electronic devices to the plurality of selected reception side electronic devices. searching for network electronic devices (110, 120, 130, 140) belonging to the same network as a user device, when an input for performing a data sharing function is sensed; classifying the searched network electronic devices (110, 120, 130, 140) into transmission side network electronic devices and reception side network electronic devices; allotting the searched network electronic devices (110, 120, 130, 140) to a first region of a display for receiving data and a second region of the display for transmitting the data, respectively; and configuring a user interface for a data sharing function based on the network electronic devices (110, 120, 130, 140) allotted to the first region of the display and the second region of the display, wherein the user interface comprises: an item representing respective network electronic devices (110, 120, 130, 140) allotted to the first and second regions, and an object indicating a direction for moving data; and a reception item arrangement space and a transmission item arrangement space, and wherein the method further comprises: in response to user input interaction operations, moving items representing a plurality of selected reception side electronic devices from the first region of the display to the reception item arrangement space, and moving items representing a plurality of selected transmission side electronic devices from the second region of the display to the transmission item arrangement space; and controlling data sharing according to the user interface by controlling moving of data from the plurality of selected transmission side electronic devices to the plurality of selected reception side electronic devices. an item representing respective network electronic devices (110, 120, 130, 140) allotted to the first and second regions, and an object indicating a direction for moving data; and a reception item arrangement space and a transmission item arrangement space, and wherein the method further comprises: in response to user input interaction operations, moving items representing a plurality of selected reception side electronic devices from the first region of the display to the reception item arrangement space, and moving items representing a plurality of selected transmission side electronic devices from the second region of the display to the transmission item arrangement space; and controlling data sharing according to the user interface by controlling moving of data from the plurality of selected transmission side electronic devices to the plurality of selected reception side electronic devices. in response to user input interaction operations, moving items representing a plurality of selected reception side electronic devices from the first region of the display to the reception item arrangement space, and moving items representing a plurality of selected transmission side electronic devices from the second region of the display to the transmission item arrangement space; and controlling data sharing according to the user interface by controlling moving of data from the plurality of selected transmission side electronic devices to the plurality of selected reception side electronic devices.