The escalating global warming crisis necessitates a shift towards alternative energy sources to diminish the reliance on fossil fuels. Hydrogen emerges as a frontrunner due to its unparalleled cleanliness, generating only pure water as a byproduct. The development of the hydrogen energy industry presents a crucial avenue to combat CO2 emissions and alleviate the impacts of global warming. Innovations in hydrogen liquefaction, particularly with LNG pre-cooling, are gaining traction for their potential to enhance energy storage mechanisms. By leveraging the higher energy density of LH2, long-distance transportation and storage costs are drastically reduced, making it a practical and economically feasible solution. Researchers are exploring novel approaches to optimize H2 liquefaction processes by utilizing LNG cold energy, resulting in improved efficiency, reduced energy consumption, and enhanced exergy efficiency. Additionally, incorporating LNG pre-cooling with SMR hydrogen production processes demonstrates a significant reduction in energy consumption and CO2 emissions, marking a pivotal advancement in the quest for sustainable energy solutions. The integration of LNG cold energy not only boosts economic viability but also enhances environmental sustainability, positioning hydrogen as a key player in the transition towards a clean, low-carbon energy system.