The invention relates to a large-field-depth large-view-field wide-temperature-variance high-image-quality optical system. A first negative lens, a second negative lens, a first positive lens, a third negative lens, a diaphragm, a second positive lens, a third positive lens, a fourth positive lens and a fourth negative lens which are successively arranged on an optical path. The large-field-depth large-view-field wide-temperature-variance high-image-quality optical system provided by the invention facilitates correction of field curvature, effectively resists complex particle irradiation in space, prevents degumming in a complex space environment and is applied to space environment.