随着空间成像技术的发展，当今各科技大国均加大了对新型光学材料的制备及应用的研究工作。近年来新近兴起的新型 SiC材料因其良好的热稳定性、高比刚度、低密度、易于轻量化等优点，而成为未来空间相机主光学成像元件的首选材料。本文结合当前国内外 SiC材料研究进展，介绍了新型 SiC光学材料常用的几种制备技术及相关应用，对其制备方法和加工工艺进行了系统的阐述和总结，重点介绍了 SiC材料与常规玻璃材料加工的不同之处，并对比了国内外的加工情况及我国目前 SiC材料加工现状。从当前新型 SiC加工情况看， SiC加工采用的数控光学加工技术 CCOS大大提高了 SiC材料的加工效率和加工精度，具有广阔的应用前景。

With the development of the space imaging, all of the countries have increased the research work about the preparation and application of the new optical material. Because of the good thermal stability, high specific stiffness, low density and being easy to light weight, the SiC material is becoming the preferred material for the main optical components of the space camera. The paper describes a new type of SiC optical material which is used in the optical system mirror. And the common preparation technologies and related applications of the SiC are introduced too. The SiC material’s preparations and processing technologies are summarized seriously. The author focused on the differences of the SiC material and conventional glass processing, and compared the processing situation home and abroad. From the current situation of the SiC processing, the technology of Computer-controlled Optical Surfacing (CCOS) has enhanced the efficiency and precision of the SiC greatly, which has broad application prospects.