To improve resolution of an image in a case of imaging with an image sensor having light receiving sensitivity in a long wavelength region.A surgical imaging system according to the present disclosure includes a first image sensor that has light receiving sensitivity in a wavelength region of visible light and images a surgical site, a second image sensor that has light receiving sensitivity in a wavelength region of visible light and near-infrared light and images the surgical site, and a signal processing device that performs a process for displaying a first image imaged by the first image sensor and a second image imaged by the second image sensor.