Cutting apparatus

A cutting apparatus that cuts a workpiece by a cutting blade, the cutting apparatus comprising:

• a chuck table that holds a board in which a groove is formed through cutting of the board by the cutting blade;
• a cutting unit having a spindle and a mount flange that is fixed to a tip part of the spindle and on which the cutting blade is mounted;
• and
• a replacement apparatus that replaces the cutting blade mounted on the mount flange with the cutting blade stored in a blade storing part and replaces the board placed on the chuck table with the board stored in a board storing part, wherein
• the replacement apparatus includes a holding part that holds the cutting blade and the board under suction,
• the holding part includes a blade suction pad that gets contact with the cutting blade or a base for fixing the cutting blade and holds the cutting blade under suction and a board support part that protrudes to an outside of the holding part relative to a tip of the blade suction pad and supports the board, and
• the board held under suction by the holding part is supported by the board support part in a state in which the board is not in contact with the blade suction pad.