The present invention relates to a 3D image rig to allow a 3D image to be shot using a normal camera. The 3D image rig includes: a first camera fixing device and a second camera fixing device to allow lenses of two respective cameras to be symmetrically placed on the right and left sides to face each other; a first reflector and a second reflector separately formed on the center of the first camera fixing device and the center of the second camera fixing device respectively at a vertical angle from a shot position and at an oblique angle in both directions; and a first observation reflector and a second observation reflector placed on the rear end of the first camera fixing device and the rear end of the second camera fixing device respectively at an oblique angle. These elements are installed in first and second moving platforms. Accordingly, the 3D image rig makes 3D filming possible at a distance of 1/10 or less of a conventional filming distance, and provides a brightness of at least two times greater than a conventional half-mirror structure, and is manufactured at low costs.