液氢在储存、运输、应用等环节具有明显成本优势，是未来氢能储运的主要方式之一。分析了国内外液氢的生产、储存、运输技术现状以及我国液氢发展前景和存在问题；指明目前亟待解决的主要问题包括顶层设计、标准完善、多元化应用、关键技术设备自主研发等；需推进氢能在交通运输、能源供应、工业生产、商住生活等多个领域的产业应用，最终促进氢能在优化能源结构、保障能源安全、实现"双碳"目标过程中的关键作用。

Liquid hydrogen has obvious low cost advantages in storage, transportation and application, and is one of the main ways for hydrogen energy storage and transportation in the future.Current situation of liquid hydrogen production, storage and transportation technologies in the world is expounded, and the prospects and existing problems for the development of liquid hydrogen in China is analyzed.Main problems to be solved currently include top design, standard perfect, the diversified applications, independent research and development of key technology and equipment, etc.China needs to promote the application of hydrogen energy in the transportation, energy supply, industrial production, business life and other industries.Ultimately, the key roles of hydrogen energy will be promoted in optimizing energy structure, ensuring energy supply security and realizing "carbon emission peaking and carbon neutrality" goal.

饶永超(1987-),男,博士,高级实验师,研究方向为气体水合物理论及应用,ryc@cczu.edu.cn。