A hydrocracking catalyst, comprising a supporter, an active metal component, and carbon, wherein, based on the total weight of the catalyst,the content of the supporter is 60∼85wt%, the content of the active metal component calculated in metal oxides is 15-40wt%, and the content of carbon calculated in C element is 1-3wt%; wherein the sum of the content of the components in the catalyst is 100%, measured with an infrared acidimetric estimation method, the acid properties of the hydrocracking catalyst are: the total infrared acid amount is 0.4-0.8mmol/g, wherein, the infrared acid amount of strong acid with desorption temperature greater than 350°C is 0.08mmol/g or lower, and the ratio of the total infrared acid amount to the infrared acid amount of strong acid with desorption temperature greater than 350°C is 5-50, wherein the catalyst is obtainable by a process comprising the following steps: controlling a supporter to contact with a carbon source and have carbon deposition reaction, to obtain a carbonized supporter; roasting the carbonized supporter in an oxygen-containing gas, to obtain a decarbonized supporter, in which the carbon content is 20-80% of the carbon content in the carbonized supporter, wherein, the oxygen content in the oxygen-containing gas is 0.5-8vol%, the roasting temperature is 250°C-390°C, and the roasting time is 3.5-20h; introducing a precursor of active metal component into the decarbonized supporter, and drying the decarbonized supporter; and treating the product obtained in the step through a heat treatment process, in which the precursor of active metal component is converted into active metal oxides, and the carbon in the decarbonized supporter is kept; by roasting the product obtained in the step in a roasting furnace by: introducing an inert gas into the roasting furnace for displacement, wherein, the volume ratio of gas/agent for controlling the introduction speed of the inert gas is (500-5,000): 1; then, heating up the roasting furnace at 20°C/h-40°C/h heating rate to 400°C-700°C when the oxygen purity in the atmosphere in the roasting furnace is lower than 0.1vol% after the inert gas is displaced into the atmosphere in the roasting furnace; and accomplishing the roasting within 2-10h at 400°C-700°C or wherein the product obtained in step is activated at 150-300°C in an oxygen-containing atmosphere for 1-5h, wherein the volume of gas/agent is the volume ratio of inert gas: impregnated and dried decarbonized supporter. controlling a supporter to contact with a carbon source and have carbon deposition reaction, to obtain a carbonized supporter; roasting the carbonized supporter in an oxygen-containing gas, to obtain a decarbonized supporter, in which the carbon content is 20-80% of the carbon content in the carbonized supporter, wherein, the oxygen content in the oxygen-containing gas is 0.5-8vol%, the roasting temperature is 250°C-390°C, and the roasting time is 3.5-20h; introducing a precursor of active metal component into the decarbonized supporter, and drying the decarbonized supporter; and treating the product obtained in the step through a heat treatment process, in which the precursor of active metal component is converted into active metal oxides, and the carbon in the decarbonized supporter is kept;