Abstract: In order to cope with global climate change, enrich energy supply approaches and achieve carbon neutrality, a majority of developed countries and regions around the world have formulated their own hydrogen energy strategies in 2020, and promoted the hydrogen energy industry development to the height of national energy strategies, aiming at achieving CO₂ emission reduction goals between 2030 and 2050. The authors in this paper have elaborated on the hydrogen energy development strategies in each country, the role of hydrogen energy development in solving energy security and ecological security, and the technical route of hydrogen energy production and the related economic and social benefits. Besides, the role of geological work in the deployment and implementation of national hydrogen energy strategy has also been described in detail: ① Exploration and exploitation of fossil energy sources such as natural gas and shale gas should be enhanced to ensure sufficient sources of raw materials for hydrogen production; ② It’s necessary to explore the meservoir and caproct syin the carbonarg produce; ③ Large-scale geological storage of hydrogen, such as underground salt caverns and abandoned reservoirs storage of hydrogen, has also play an important role. According to the national conditions, China should strive to develop the integrated industrial chain from hydrogen production by coal gasification to CO₂ pipeline transportation, and then to CO₂ flooding and geological storage, to achieve both economic and social benefits, which would also provide some reference for promoting hydrogen energy development strategy.