人类对时间的计量历史可以追溯到几千年前,随着科学技术的发展与进步,人类对事件的计量精度也越来越精确。当前,世界上最精确的计时工具为光频标,可以达到百亿年不差一秒的水平。文章回顾了离子光频标的发展过程和当前的研究进展,简要介绍了钙离子光频标和量子逻辑铝离子光频标的原理及进展。 Human measurement of time can be traced back thousands of years ago, with the development of science and technology and progress, human measurement accuracy of events is more and more accurate. At present, the most accurate timekeeping tool in the world is an optical frequency standard, which can reach the level of one billionth of a second. In this paper, the development process and current research progress of ion optical frequency standard are reviewed. The principle and progress of calcium ion optical frequency standard and quantum logic aluminum ion optical frequency standard are briefly introduced.