Asphalt blending oil and blending method thereof

The invention discloses asphalt blending oil and a blending method thereof, and relates to road asphalt, in particular to the asphalt blending oil coming from natural plants and the blending method ofthe asphalt blending oil. The preparing method comprises the following steps of 1, selecting an oil product coming from the natural plants as the asphalt blending oil; 2, heating the asphalt blendingoil and petroleum asphalt to 120-180 DEG C respectively; 3, mixing the asphalt blending oil and the petroleum asphalt preheated in the step 2 according to the mass proportion of 1: (5-8) and adding adhesive, wherein the adding amount of the adhesive is 0.1-3% of mixed asphalt; 4, stirring the mixed asphalt obtained in the step 3 at 80-180 DEG C, wherein the stirring time is 0.2-4 hours. By meansof the asphalt blending oil and the blending method thereof, the problems that the using temperature range of an existing road asphalt is narrow, under low temperature, the stability of the road asphalt cannot be guaranteed, an