Drop weight impact testing machines have become essential testing equipment for assessing the low-temperature fracture resistance of high-strength pipeline steel. Widely adopted in the oil and gas sector, the instrument complies with ASTM E208 standard to conduct nil-ductility temperature tests. It simulates extreme low-temperature and ice impact environments, verifying the structural stability of pipeline materials and effectively avoiding brittle fracture risks in long-distance transmission pipelines under harsh climatic conditions.