Abstract: The coprocessing of Shenfu coal and Shengli vacuum residue (SV) was studied using resonance agitation reactor. Coal conversion was investigated at 430 ℃, 46 ℃, 490 ℃, respectively, with reaction time from 3 min to 18 min. In this experiment system, the highest coal conversion of coprocessing is 48.56%; the optimum temperature and time are 460 ℃ and 15 min respectively. The reaction process can be divided into three stages, namely, rapid cracking hydrogenation, slow hydrogenation and polycondensation. Coal conversion is improved by adding anthracene into SVR, using hydrogenated SVR and benzene soluble fractions as solvent respectively. The hydrogenated SVR is not a good donor solvent for coal liquefaction. When benzene soluble fractions are used as solvent, the maximal coal conversion is 65.33% at 460 ℃ and 6 min.