Inferior heavy oil and/or inferior residual oil processing method

The invention relates to an inferior heavy oil and/or inferior residual oil processing method. The method includes: feeding inferior heavy oil and/or inferior residual oil into a slurry bed reactor to realize first hydrogenation reaction, and adding obtained products into a high-pressure separator to realize separation, so that hydrogen-containing gas is obtained from the top of the high-pressure separator, liquid components are obtained from the middle of the high-pressure separator, and heavy materials are obtained from the bottom of the high-pressure separator; separating the heavy materials to obtain deasphalted oil and hydrogenation-catalyst-containing deasphalted oil, and sending the liquid components and the deasphalted oil into a fixed bed reactor to realize second hydrogenation reaction, wherein conversion level of the inferior heavy oil and/or the inferior residual oil is not higher than 50% according to conditions of the first hydrogenation reaction. By adoption of the method, poor-property inferio