Amorphous alloys possess excellent mechanical properties, corrosion resistance, and magnetic properties, and are a new structural and functional material with significant application potential. However, the preparation of amorphous alloys via traditional methods is restricted by the critical cooling rate, and the forming size is also limited; these factors restrict the application of amorphous alloys. However, the preparation of amorphous alloys via spark plasma sintering (SPS) is not limited by the critical cooling rate, and SPS can therefore produce larger amorphous alloys. This paper summarizes the research progress of the preparation of amorphous alloys via SPS from the aspects of the densification mechanism, process parameters, comparative study of properties, and numerical simulation, and analyzes its difficulties and future development directions.