To economically cut a rectangular chip with high efficiency by making it possible not only to move two spindles independently in a Z-axis direction but also to move them at the same time in a Y-axis direction by one drive source in a cutting saw.

At first, an article W to be processed such as a green ceramics condenser substrate is fixed on a holding table 5 and the holding table 5 is moved by an X-axis moving table 3 to be positioned to an alignment microscope 17 to perform the alignment of a street S1 in a lateral direction. Subsequently, a first multiblade 14 is lowered in a Z-axis direction by definite quantity while the holding table 5 is moved in an X-axis direction to simultaneously cut the street S1. After cutting, the holding table 5 is stopped at a P-position and rotated around a vertical axis by 90° to position a street S2 in a vertical direction in parallel to an X-axis and a second multiblade 16 is lowered in the Z-axis direction by definite quantity while the holding table 5 is again moved in the X-axis direction to simultaneously cut the street S2.