Abstract: In this paper, using CNOOC SZ36-1 vacuum cut three as raw material, the laboratory study of producing high aromatic rubber plasticizer by the two stage furfural extractions process and combined process of two stage furfural extractions and high pressure hydrofining was developed. The results showed that the combined process could produce the rubber plasticizer, whose C_A value was more than 25%. The yield of rubber plasticizer whose C_A value was over 21% accounted for over 43% of the vacuum third line distillate. The properties met the A1820 indexes of national standard GB/T 33322-2016 Rubber Plasticizer-aromatic Base Mineral Oil.