太赫兹（THz）技术是公众熟知的一种强大的成像工具，该技术已经被应用于安全领域和医学扫描，生成了许多使用其他技术所无法获得的令人印象深刻的图像。随着5G移动网络的推出，对6G无线通信的研究正在升温。据预测，太赫兹技术将被用于6G和未来的无线通信。本文回顾了太赫兹技术是如何被应用于成像和无线通信的，然后介绍和确定了该领域的最新发展，最后检查和比较了这两种应用中的常见设备和问题。本文还讨论了将太赫兹成像与无线通信整合的可能性，提出并讨论了目前面临的挑战和未来前景。结果表明，太赫兹技术是未来成像和无线通信的一项关键使能技术。

Terahertz (THz) technology is probably best known to the public as a powerful tool for imaging, since it has been applied in security and medical scanning, resulting in numerous impressive images that would be unobtainable using other technologies. With the roll-out of 5G mobile networks, research into 6G wireless communications is heating up. It is envisioned that THz technology will be used for 6G and future wireless communications. In this paper, we review how THz technology has been employed for imaging and wireless communications, identify state-of-the-art developments in the field, and then examine and compare common devices and issues in both applications. The possibility of integrating THz imaging/sensing and wireless communications is considered, and challenges and future perspectives are presented and discussed. It is shown that THz technology is indeed a key enabling technology for both imaging and wireless communications in the future.