A laser processing apparatus (20) includes: a light emitter (23) to emit laser light; a light scanner (29) to scan a workpiece (21) in a scanning direction with the laser light emitted from the light emitter (23), to process the workpiece (21); and a conveyor (22) to convey the workpiece (21) to a scanning area scanned by the light scanner (29) in a conveying direction (A) orthogonal to the scanning direction, a longitudinal direction of the scanning area is in the scanning direction (A).