The utility model is a copying device of three-dimensional stereographic photos, which can be used for enlarging-copy and reducing-copy of three-dimensional stereographic photos. The existing copying device can only be used for copying multi-film photos taken by multi-lens. As for copying, enlarging, and reducing stereographic photos taken with a single negative film and single lens at random, no advanced, effective and convenient way has been found. The product comprises a camera obscura 4, in which a lamp-house 2 and a stereographic photonic film 3 are positioned, and a connecting rod 5 is arranged on the camera obscura 4. A lens carrier 10, which can move along the track way, and a plate support 12 are installed on the connecting rod 5. An electromotor and a support 13 are disposed on a side of the plate support 12. The product is used for copying and converting stereographic a single film into a stereographic photo.