The invention discloses a scrapped automobile engine assembly dismantling and recycling non-polluting utilization device. The device comprises a ring-shaped track, the ring-shaped track is fixedly installed on the ground, an open groove is arranged on the inner side ground of the inner rail of the ring-shaped track, a seat stand is arranged in the open groove and is provided with a cleaning mechanism, the outer side of the outer rail of the ring-shaped track is provided with a base, a blind groove is arranged under the base, one end of the blind groove is communicated with the open groove, oneside of the base is provided with a jack mechanism, the ring-shaped track is provided with a dismantling mechanism, and the periphery of the outer side of the ring-shaped track is provided with a plurality of dismantling stations. The device has a compact structure, a reasonable and novel design, a unique idea, strong practicability and high mechanization operation efficiency. An engine is hoisted and clamped in the dismantling mechanism, is subjected to disassembly in multiple processes and discharges oil. The waste oil is recovered through the dark groove. The disassembled parts are recovered so that a recovery cost is increased. The device has no secondary pollution on the environment, greatly reduces the labor intensity of the operator, improves the working efficiency by 8-10 times and realizes the fast dismantling of the scrapped automobile engine.