A laser processing robot including a manipulator; a laser processing tool attached to the manipulator; an optical fiber for transmitting a laser beam to the laser processing tool; and a line passage formed inside the arm section to accommodate the optical fiber. The arm section includes a first member disposed fixedly about a first control axis and a second member supported on the first member rotatably about the first control axis. The line passage is formed continuously within the first and second members, an optical fiber inlet port thereof being provided in the first member and an optical fiber outlet port thereof being provided in the wrist portion. The laser processing tool includes an attachment section attached to the wrist portion rotatably about a second control axis perpendicular to the first control axis; a nozzle section extending from the attachment section and provided with a laser beam passage extending to intersect the second control axis; and a reflecting section arranged within the attachment section for reflecting a laser beam emitted from the optical fiber to direct it toward the laser beam passage. The emitting end face of the optical fiber is positioned between the optical fiber outlet port and the reflecting section.

 
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