An arc-shaped flexible printed circuit film type endoscope uses an imaging device with driving holes. The endoscope has an image photographing means and an object insertion means. The endoscope includes a plurality of driving holes which are formed at regular intervals in a longitudinal direction of the object insertion means, and a driving means which rotates while being sequentially inserted into the driving holes, thus moving the object insertion means. The endoscope precisely controls a movement into a small space, makes it easy to inspect a narrow heat transfer tube or gaps formed between heat transfer tubes, achieves high economic efficiency, increases the reliability of endoscopy, and increases a life-span.
