The utility model relates to lithium battery graded crushing equipment and a lithium battery graded crushing process, and the equipment comprises a shredder, a suction fan, an air suction pipeline, afirst-stage vertical crusher, a second-stage vertical crusher, a first-stage transmission mechanism, a second-stage transmission mechanism, a sealing cover and a diaphragm collector. On the basis of the existing lithium battery shredder, the two stages of vertical crushers are additionally arranged, so that the combined process of multi-stage shredding and crushing of the lithium battery is realized, the valuable substances of the lithium battery are quickly separated, and the enriched substances with higher purity are obtained. And meanwhile, the stripping effect of the vertical crusher is controlled through the arrangement of the discharge port and the screen, so that the shape of discharged materials is regular, and subsequent physical sorting is facilitated. In addition, by arranging asealing cover and an air suction pipeline, light diaphragms and waste gas are sucked away, finally, the diaphragms are collected in a unified mode through the detachable diaphragm collector, and environmental pollution is reduced.