The invention belongs to the field of high polymer materials and particularly relates to a light polyolefin modified nylon material for automobile plastic parts. The material comprises the following raw materials in weight part: 100 parts of PA1212, 14-18 parts of SEBS, 10-12 parts of ultra low density polyethylene, 4-5 parts of calcium stearate, 1-2 parts of stearic acid, 6-8 parts of polyethylene wax, 6-9 parts of magnesium hydrate, 8-12 parts of chlorosulfonated polyethylene, 3-5 parts of dioctyl phthalate, 1-2 parts of angelica essential oil and 12-15 parts of an accessory ingredient. According to the invention, the advantages of the raw materials including PA1212, SEBS, ultra low density polyethylene, chlorosulfonated polyethylene and the like are combined, so that the excellent processing property and mechanical property are achieved, the prepared material is light in weight, flexible, solid, firm, heat resistant, aging resistant, temperature resistant, excellent in electrical insulation property, safe and reliable, and has the self-lubrication property, can be widely used for fabricating various plastic parts for automobiles, and the added angelica essential oil enables the material to have pleasant aroma.