The utility model discloses a high-pressure oil delivery pipe for an engine. The high-pressure oil delivery pipe comprises an outer sleeve (1), wherein an inner lining tube (2) is embedded in the outer sleeve (1); the external diameter of the outer sleeve (1) is 8 mm and the internal diameter of the outer sleeve (1) is 3.8 mm; and the external diameter of the inner lining tube (2) is 2.47-2.53 mm and the internal diameter of the inner lining tube (2) is 1.77-1.83 mm. The high-pressure oil delivery pipe has the advantages of fatigue resistance, resistance to internal pressure, corrosion resistance, heat resistance and the like; a foreign imported product can be substituted; the foreign monopolistic situation is broken; and the high-pressure oil delivery pipe has positive significance to improving the localization rate and the quality of the domestic engine.