Abstract: The coking of a mixture containing residue oil and waste road asphalt was calculated by a delayed coking kinetic model built by structure oriented lumping method, and the results showed that waste road asphalt could be used as a blending material for delayed coking. Experimental results indicated that under the operating conditions of 470 ℃, 0.15 MPa and without recycle, as compared with the 80% yields of total residue oil coking, for coking of this residue oil mixed with 20% waste road asphalt, the yield increase of gas, liquid and coke was 2.30, 2.91 and 14.79 percentage point, respectively. By comparing products properties and economic estimation, it was confirmed that waste road asphalt as delayed coking blending material could be a new approach for its recycling.