Because some visible hybrid diffractive-refractive optical systems were complicated, the optical and thermal properties of glass materials in visible band were various. The initial system configurations of the visible hybrid optics could not be reliably gained by achromatic and athermal equations like those of the infrared hybrid optics. The thermal property of diffractive optical elements was analyzed, and achromatic design and athermal design were separately carried through in the optical system design, prompting the completion of designing visible-band, athermal camera lens for space applications. The image quality with the systems was uniform and the shifting range of MTF was confined within 6%, at 20～100 ℃. Design result showed that hybrid optical system had compact structure and reliable performance within required temperature range.