Asphalt property prediction method and device

The invention discloses an asphalt property prediction method and device, and relates to the technical field of petrochemical engineering, and the method comprises the following steps: obtaining infrared spectrum data of to-be-detected asphalt; screening out a plurality of target asphalt infrared spectrum data and corresponding target asphalt samples from a pre-constructed asphalt sample database, wherein the similarity between the target asphalt infrared spectrum data and the infrared spectrum data of the to-be-detected asphalt is within a preset range; performing multiple linear regression on the infrared spectrum data of the target asphalt to obtain fitting parameters of each target asphalt sample; according to the fitting parameters of the target asphalt sample and the actually measured four-component content, determining the fitted four-component content of the to-be-measured asphalt; and inputting the fitted four-component content into a pre-constructed asphalt component property prediction model, and o