Abstract: Residue oil hydro-upgrading was studied in an autoclave with hydrogen donor and supported catalyst. The product distribution was analyzed to determine the effect of hydrogen donor. The results show that hydrogen donor has no effect on the conversion ratio, but reduces the gas and coke yield. And the methane content in the gas is also decreased. The hydrogen donor can improve the distribution of liquid product and convert 350?500 ℃ fraction to more 180-350℃ fraction.