1. An apparatus for inputting and displaying data for a refrigerator, comprising: a touchscreen mounted on a front surface of the refrigerator for inputting the data in the form of images that a user has written or drawn; a memory means for storing the image data written or drawn on the touchscreen; and a control means for performing control of displaying the image data stored in the memory means on the touchscreen or of storing the image data, which are inputted through the touchscreen, into the memory means.