A laser processing machine that performs processing on a workpiece using a laser beam, comprising: a first wedge prism, a second wedge prism, a third wedge prism, and a fourth wedge prism that are disposed in order from an upstream side on an optical path of the laser beam; a first spindle, a second spindle, a third spindle, and a fourth spindle that respectively and independently hold the first wedge prism, the second wedge prism, the third wedge prism, and the fourth wedge prism; first holding means, second holding means, third holding means, and fourth holding means for respectively and rotatably holding the first spindle, the second spindle, the third spindle, and the fourth spindle; characterized by comprising a first motor, a second motor, a third motor, and a fourth motor including rotors (35b, 45b, 55b, 65b) respectively fixed to the first spindle, the second spindle, the third spindle, and the fourth spindle, and stators (35a, 45a, 55a, 65a) respectively fixed to the first holding means, the second holding means, the third holding means, and the fourth holding means; wedge prism moving means (101, 102) for moving at least one of the first wedge prism and the second wedge prism, and a parallel flat plate for performing zero point correction for the displacement of the laser beam by the first and second wedge prisms, the parallel flat plate being provided in the second spindle so as to be capable of being tilted with respect to an optical axis and disposed downstream of the second wedge prism on the optical path, wherein the first wedge prism and the second wedge prism are a pair of wedge prisms that displace the laser beam passing therethrough, and wherein the third wedge prism and the fourth wedge prism are a pair of wedge prisms that deflect the laser beam passing therethrough. a first wedge prism, a second wedge prism, a third wedge prism, and a fourth wedge prism that are disposed in order from an upstream side on an optical path of the laser beam; a first spindle, a second spindle, a third spindle, and a fourth spindle that respectively and independently hold the first wedge prism, the second wedge prism, the third wedge prism, and the fourth wedge prism; first holding means, second holding means, third holding means, and fourth holding means for respectively and rotatably holding the first spindle, the second spindle, the third spindle, and the fourth spindle; characterized by comprising a first motor, a second motor, a third motor, and a fourth motor including rotors (35b, 45b, 55b, 65b) respectively fixed to the first spindle, the second spindle, the third spindle, and the fourth spindle, and stators (35a, 45a, 55a, 65a) respectively fixed to the first holding means, the second holding means, the third holding means, and the fourth holding means; wedge prism moving means (101, 102) for moving at least one of the first wedge prism and the second wedge prism, and a parallel flat plate for performing zero point correction for the displacement of the laser beam by the first and second wedge prisms, the parallel flat plate being provided in the second spindle so as to be capable of being tilted with respect to an optical axis and disposed downstream of the second wedge prism on the optical path, wherein the first wedge prism and the second wedge prism are a pair of wedge prisms that displace the laser beam passing therethrough, and wherein the third wedge prism and the fourth wedge prism are a pair of wedge prisms that deflect the laser beam passing therethrough.