The invention relates to a high-nitrogen-resistance hydrocracking catalyst and a preparation method thereof and main solves the problem that traditional hydrocracking catalysts are poor in nitrogen resistance. The technical scheme is as follows: the catalyst is prepared from components in percentage by weight as follows: 35%-48% of at least one of FAU, BEA, MOR and MIF type zeolite or amorphous silica-alumina, 10%-305 of pseudo-boehmite, 8%-18% of tungsten sulfide and 4%-11% of at least one of nickel phosphide, cobalt phosphide, molybdenum phosphide and tungsten phosphide to serve as an active component, so that the problem is better solved. The catalyst prepared with the method is high in cracking activity and applicable to the field of hydrocracking of distillate oil with the nitrogen content not higher than 110 mu g/g.