轨道角动量(OAM)通信复用方法近年来被认为是一种提升通信容量的有效途径。基于国内外相关研究，阐述了轨道OAM 通信方法的发展；根据频率特点，分析太赫兹轨道OAM 通信方法的形式和应用优势，并进一步分析讨论了太赫兹轨道OAM 通信应用存在的问题和解决方式，特别是远距离大宽带情形下的分析，为未来技术发展和应用提供参考。

The Orbital Angular Momentum(OAM) communication method is recognized as a promising method in improving the capacity of the communication systems. Based on the relevant research at home and abroad, the development of the OAM communications is introduced. According to the frequency characteristic, the structure and advantages of the terahertz OAM communication are analyzed. Some technical problems, especially those with wide bandwidth and long-range communications, are discussed for further development and applications.