Abstract: Supercritical Anti-Solvent (SAS) is a promising technique to prepare supported metallic nanoparticles. This review paper highlights the potential of supercritical anti-solvent process in the enhancement of Dye-Sensitized Solar Cell (DSSC) efficiency. The fundamental aspects in SAS process has been applied through the analysis on the controls and modification of main properties of particles such as morphology, size, particle size distribution and crystallinity for the improvement of solar cell application. The current issues and technologies associated with SAS process were stated throughout the study.