The invention discloses a heavy oil hydrogenation upgrading process for coupled cracking and reforming hydrogen production. The invention relates to a heavy oil hydrogenation upgrading process, the heavy oil hydrogenation upgrading process adopts a coupling process of cracking and reforming hydrogen production and fixed bed catalytic hydrogenation upgrading, can realize independent or simultaneousoperation of a plurality of tubular reactors connected in parallel through a switching valve, and realizes continuous efficient production of catalytic hydrogenation, catalytic desulfurization, catalytic denitrification, catalytic deoxidation and catalyst regeneration. When in use, the characteristics are outstanding, the cracking and reforming hydrogen production process is adopted to replace the traditional water electrolysis hydrogen production process, and hydrogen is produced on site while being used, so that the hydrogen production process is safer and more energy-saving; a fixed bed reactor adopts a single-tube multi-bed design, and can simultaneously realize upgrading reactions such as catalytic cracking, catalytic hydrogenation, catalytic desulfurization, catalytic denitrification, catalytic deoxidation and the like; meanwhile, the device can realize continuous production of independent regeneration of a single-tube catalyst, greatly improves the working efficiency, can realize efficient hydrogenation upgrading of heavy oil such as waste tire pyrolytic oil, oil sand pyrolytic oil, coal pyrolytic oil, waste engine oil, residual oil, turbine engine oil and the like, and hasa very strong application prospect.