Recently, the application of spark plasma sintering (SPS) as a novel method in the fabrication of polymer and polymer-based composites have drawn the attention of researchers and industries. Owing to its advantages over the conventional polymer and polymer-based composites processing method. SPS is a sintering technique for producing components with high density at relatively low sintering temperature and short sintering time. However, as SPS allows good control of the sintering operation parameters and material microstructure compared to the traditional sintering technique, for example hot pressing, the review study focused on the fabrication of polyimide (PI) and PI-based composites using SPS technique. The unique characteristics ascertained from the SPS sintered PI-based micro/nanocomposites were discussed. Hence, it was observed that the mechanical, electrical, thermal stability, ant-wear, and corrosion resistance of PI-based composites could be improved using the SPS process favourable for industrial and advanced engineering applications. Furthermore, the authors ended the review with challenges and recommendations for future advancement of SPS applications practicable for commercial production. Thus, the review will pave the way for future research among polymer scientists, industrialist, and engineer.