To perform boring suitable for the respective bindings quickly and flexibly according to the change content by providing a boring means adapted to move in the directions of X, Y and Z axes by a three-axis robot to bore a ski, and an operating part for setting and inputting boring information for boring on a control part.

The above device comprises a robot controller 21 for operating a three-axis robot according to boring information from a note type personal computer 20 as input and a console box 22 for outputting operating signals for starting and stopping the operation to the robot controller. A main menu 'working work' of a main menu displayed on the screen of the note type personal computer is selected, and from a displayed list of sole sizes, a size is selected. After that, by designated operation, boring information is transmitted to a robot controller 21, and boring information is stored in RAM of the robot controller 21. In such a condition, a start switch provided on the console box 22 is turned on to execute one boring operation.