Spectral imaging technology is an important technical means in the field of deep space exploration and can serve a variety of space scientific experiments. Aiming at the demand of high stability and high light utilization of spectral loads in the field of deep space exploration, a new deep space hyperspectral diffraction computational imaging detection technology was proposed . Combining diffraction spectrum imaging technology and light field imaging technology to solve the problem of large-scale scanning of the detector in the diffraction spectrum push-broom imaging system, and one shot was realized to obtain the target spatial information and spectral information, that is, snapshot imaging. This has guiding significance for the design and research of deep space exploration hyperspectral imagers.