Operation method and system for function of stylus pen

The present invention relates to pen function operation. Particularly, configuration of a system and method for operating a pen function is disclosed in the present invention. The system comprises: a pen recognition panel which recognizes a pen for touch according to a set mode; a control unit which collects pen state information including at least one among information about a disposition location between the pen recognition panel and the pen for touch and pressed state information of a button prepared in the pen for touch, type information of a function that is currently activated, and gesture recognition information corresponding to a gesture input operation of the pen for touch, or collects the pen state information and the gesture recognition information; a storage unit which includes a pen function table providing a pen function command corresponding to the collected information according to the set mode; and a display panel which outputs information corresponding to the performance of a function corresponding to the pen function command.