1. A method for processing data of a terminal, the method comprising: displaying a feature point extracting method selection window when the terminal is in a Data save mode which saves at least one data displayed on a touch screen of the terminal, the feature point extracting method selection window displaying a feature point extracting method for extracting feature point information from a plurality of data displayed on the touch screen; extracting the feature point information from the displayed data by using the feature point extracting method selected through the feature point extracting method selection window; saving at least one feature point information extracted from the displayed data as group feature point information; determining a feature point restoring method for restoring the group feature point information for displaying data and the feature point information into the displayed data, in a data display mode which displays data corresponding to the saved feature point information; and restoring data group information included in the group feature point information into the displayed data through the determined feature point restoring method, wherein the feature points are extracted by analyzing only the plurality of data displayed on the touch screen originally, and wherein the displayed data are input through the touch screen.