The invention discloses a low-temperature impact-resistant and low stress whitening-resistant long glass fiber reinforced polypropylene material, comprising, by weight, 10%-80% of long glass fiber reinforced polypropylene masterbatches and 20% -90% of low-temperature impact-resistant and low stress whitening-resistant masterbatches, wherein the long glass fiber reinforced polypropylene masterbatches comprise, by weight, 0%-80% of co-polypropylene, 0%-80% of homo-polypropylene, 10%-60% of glass fibers, 1%-10% of grafted polypropylene, 0.1%-2% of an antioxidant and 0.2-2% of a processing agent; the low-temperature impact-resistant and low stress whitening-resistant masterbatches comprise, by weight, 50%-95% of co-polypropylene, 0-30% of a grafted elastomer, 0-20% of a brominated flame retardant, 0.1%-2% of an antioxidant and 0.2-5% of a processing agent. The polypropylene material prepared by the method improves the characteristic of low-temperature impact resistance and reduce generation of stress whitening. A finished product prepared by the material has good drop impact resistance, and can be used for workpieces such as packing cases or electric tools, etc.