The invention discloses a hydrocracking catalyst as well as a preparation method and a starting method thereof. The hydrocracking catalyst is prepared from a hydrogenated active metal component, a carrier containing an acid cracking component and a specific organic compound. The obtained vulcanization type hydrogenated catalyst is good in vulcanization and passivation effect and high in hydrogenation activity. The hydrocracking catalyst is not required to be subjected to a hydrogen sulfide generation reaction and a hydrogen sulfide and active metal vulcanization reaction during starting of vulcanization, so that the problem of rapid temperature rise of a traditional catalyst in a vulcanization process is solved; ammonia injection for passivation is not required, therefore, environmental pollution and harm to a human body can be reduced, and the hydrocracking catalyst realizes sufficient vulcanization, is good in metal dispersity and has good hydrogenation property.