To provide a compound stereo vision device that does not require calibration work before measurement, can significantly simplify measuring work, and can improve measurement accuracy.

The compound stereo vision device comprises a first stereo vision control section 2 for calculating three-dimensional positional information of a subject with a first coordinate system based on photographed images of a first camera 11 and a second camera 12, a second stereo vision control section 3 for calculating three-dimensional positional information of the subject with a second coordinate system based on photographed images of a third camera 13 and a fourth camera 14, a lens fixing member integrally formed for fixing the relative position relation of first to fourth lenses, an imaging substrate to which the relative position relation of first to fourth imaging elements is fixed, an output section 5 for converting the positional information by the first and second coordinate systems to positional information of an integral coordinate system and outputting it, and a nonvolatile storage means 4 for permanently storing parameters for converting the positional information of the first and second coordinate systems into the positional information of the integral coordinate system.