PNT technologies have been used widely in many kinds of applications ,inclu‐ding military ,commerce ,civil ,science and so on .Many countries have placed great empha‐sis on PN T technologies and plenty of new methods spring up in recent years ,w hich are in‐statephase or in study and development . This paper reviews various valuable and useful methods of positioning and navigation ,including X‐ray navigation ,geomagnetic navigation , gravity navigation ,blue‐green laser navigation ,all‐source navigation ,micro‐PNT ,micro/nano‐satellites navigation ,quantum positioning system (QPS) ,and then analyzes their prin‐ciples ,advantages and disadvantage .T he requirements of availability ,autonomy ,covert and anti‐interference performance in different situations could be satisfied with reasonable combi‐nation of these PNT technologies .The analysis and conclusions can provide valuable refer‐ences for the development of potential navigation technologies and national PNT architecture desig n .%定位导航授时（PNT）技术已经融入众多领域，涉及军用、民用、商用、科研等各个方面。任何一种导航技术都不是“万能”的，无法满足所有的应用需求，为此，各国对PNT技术非常重视，不断加大投入，各种新导航技术也是层出不穷，它们正处于概念状态或深入研究进程中。本文简要概括了包括X射线脉冲星导航、地磁导航、重力导航、蓝绿激光导航、全源导航、微型PNT技术、微纳卫星技术、量子导航等在内多种具有研究和应用价值的导航技术，分析了不同导航方式的基本原理、优缺点和适用范围，以此进行合理选择实现的组合导航，可满足不同应用场景下的可用性、自主性、隐蔽性、抗干扰性的导航需求，为我国未来的PNT技术发展和PNT体系规划建设提供参考。
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