The invention discloses a long-stroke parallel opening and closing type cylindrical pneumatic intelligent industrial robot finger unit. The finger unit comprises a mounting seat, and rotating seats are arranged at the two ends of the upper surface of the mounting seat; a power threaded rod is rotatably connected to the interiors of the rotating seats; the outer surface of the power threaded rod is in threaded connection with connecting seats through power threaded holes; adjusting grooves are formed in the two sides of the front end of the upper surface of the mounting seat; adjusting threaded holes are formed in the surfaces of the outer sides of the adjusting grooves; the interiors of the adjusting threaded holes are in threaded connection with adjusting threaded rods; the surfaces of the front ends of the adjusting threaded rods are rotatably connected with adjusting seats; the upper surfaces of the adjusting seats are rotatably connected with connecting rods through rotating shafts; supporting rods are fixedly mounted on the surfaces of the front sides of the connecting rods through bolts; the surfaces of the front ends of the supporting rods are fixedly connected with supporting seats; and rotating holes are formed in the centers of the surfaces of the front ends of the supporting seats. According to the industrial robot finger unit, adaptability of mechanical arms can be greatly improved, and production efficiency is effectively improved.