随着光学望远镜的口径不断增大，新技术的不断发展，现代天文学科取得了许多重要进展.此外，良好的台址对于天文学地面观测也具有重要意义.本文对光学望远镜一些关键技术进行讨论，例如，光学拼接技术、自适应光学技术等.同时，对国内现有的光学台址和代表性望远镜进行了概述.

With increasing aperture of optical telescopes and the continuous development of new technologies, many important advances have been made in modern astronomy. In addition, a good site is also of great significance for astronomical ground observation. In this paper, some key technologies of optical telescope are discussed, such as optical splicing technology, adaptive optics technology and so on. At the same time, the existing optical sites and representative telescopes in China are summarized.