To provide a stereo camera device capable of maintaining performance and reliability, while realizing thickness reduction, provided are a first image pickup device, a first communication connection unit to output a first image captured with the first image pickup device, a first image pickup substrate where the first image pickup device and the first communication connection unit are provided, a second image pickup device, a second communication connection unit to output a second image captured with the second image pickup device, a second image pickup substrate where the second image pickup device and the second communication connection unit are provided, and a housing where the first image pickup substrate is provided at one end and the second image pickup substrate is provided at another end. In the first image pickup substrate, the first image pickup device and the first communication connection unit are provided in parallel with each other in a lengthwise direction of the housing. In the second image pickup substrate, the second image pickup device and the second communication connection unit are provided in parallel with each other in the lengthwise direction of the housing. The first image pickup substrate and the second image pickup substrate are symmetrically provided.