1. A method for processing data of a terminal, the method comprising: displaying a feature point extracting method selection window for selecting a feature point extracting method for extracting feature point information which specify data according to displayed data, in a Data save mode which saves at least one data displayed on one screen; extracting the feature point information according to the data by using the feature point extracting method selected through the feature point extracting method selection window; and saving at least one feature point information extracted according to the data as group feature point information.