The article discusses the urgent need for alternative fuels in the automotive industry due to the environmental and energy crisis caused by fossil fuel consumption. It highlights the advantages of hydrogen as a clean energy source, especially in vehicles, where it enhances combustion characteristics and post-treatment system performance. Compared to electric vehicles (EVs), hydrogen fuel cell vehicles (HFCVs) offer superior driving range and refueling time, positioning them favorably in the market. The article delves into the crucial role of hydrogen refueling stations (HRS) in supporting HFCVs and emphasizes the impact of hydrogen compressors on the competition between HFCVs and conventional vehicles. The advancements in mechanical compression technologies, including the emergence of the ionic liquid compressor, are thoroughly discussed for their contributions to improving hydrogen compression efficiency and reducing complexity. Ionic liquids, known for their unique properties like low volatility and high thermal stability, are highlighted as key components in enhancing hydrogen compression. By reducing mechanical components and improving longevity, ionic liquids offer a promising solution for sustainable hydrogen compression, transforming the energy conversion characteristics and system efficiency of compressors.