中文摘要：

经过20 多年的发展, 混合现实相关技术已经取得了长足的进步, 展示出强劲的发展动力. 人机交互是混合现实的重要支撑技术, 也是近年来国内外的研究热点. 多年来, 混合现实中的人机交互研究一直在探索更加自然和高效的交互方式. 文中围绕该领域近几年的发展趋势, 重点讨论了混合现实中的人机交互设计原则与评估方法、关键技术, 调研了不同交互技术在混合现实中的应用现状, 最后做出总结并提出存在的问题.

英文摘要：

Mixed reality technology has made remarkable progress during the past two decades and shows sig-nificant development prospects. As the crucial support of mixed reality, human-computer interaction hits the re-search area in the world. Over the years, simple, natural and effective interaction modes have always been the fo-cus of human-computer interaction in mixed reality. Centering on the development tendency in recent years, this paper mainly discusses human-computer interaction design principles and evaluation methods as well as key technologies in mixed reality, surveys applications of different interaction techniques in mixed reality, finally makes a summary and puts forward the existing problems.