The invention relates to a solar photovoltaic-hydrogen energy storage power generation system, in particular to a novel high-efficiency solar photovoltaic-hydrogen energy storage power generation system, which comprises a solar photovoltaic cell, a power distributor, a direct current load and an energy storage power regeneration device, wherein the solar photovoltaic cell serves as a system power source; and the energy storage power regeneration device consists of an electrolytic bath, a hydrogen storage tank and a fuel cell. By the system, the main technical problems of low energy storage density, short energy storage time, short service life, high leakage rate, high failure rate, environmental pollution caused by scrapping and the like of the conventional solar cell are solved. Compared with the conventional solar photovoltaic energy storage system adopting a storage battery as energy storage equipment, the energy storage power regeneration device of the system has the advantages of long energy storage time, high energy storage efficiency, low running and maintenance workload, no anti-reverse charging diodes and the like. The system fully utilizes renewable energy sources, has the advantages of energy saving, environment friendliness and the like, and can be popularized and used in places such as remote mountainous areas, islands and the like with sufficient sunlight but insufficient utility power.