This review mainly focuses on the research progress of the preparation of optical functional glass and glass-ceramics by spark plasma sintering technology. Spark plasma sintering is an important technology for achieving rapid densification of powder materials. Using it to prepare optical functional glass and glass-ceramic materials can not only simplify the preparation process, shorten the preparation time, but also expand the research field of optical glass-ceramics. This paper summarizes the glass systems prepared by spark plasma sintering technology. Based on the latest research progress, the effects of different sintering parameters such as temperature, pressure, and sintering holding time on glass shrinkage, final densification, and transparency, as well as the effects of these parameters on other properties of glass materials, are mainly introduced. Finally, the possible development directions in the future are discussed, including digging into the sintering mechanism, reducing or even avoiding carbon contamination, optimizing the preparation process, developing new optical functional composite glass, and exploring new applications.