Water jet processing apparatus

Disclosed herein is a water jet processing apparatus including a chuck table that holds a workpiece by a holding surface, a high-pressure water injection unit having a high-pressure water nozzle that injects high-pressure water along planned dividing lines of the workpiece to remove burrs, a processing feed unit that carries out processing feed of the chuck table in an X-direction, and an indexing feed unit that carries out indexing feed of the high-pressure water nozzle in a Y-direction. The water jet processing apparatus also includes a movement unit that moves the high-pressure water nozzle in a Z-direction, an alignment unit that images the workpiece, a cassette placement region in which a cassette that houses plural workpieces is placed, and a conveying unit that conveys the workpiece between the cassette and the chuck table.