This study aims to compare the detection performances of five portable Raman spectrometers (PRSs) applied in the field of forensic science. Through an in-depth analysis of the five PRSs and a comparison with a benchtop Raman spectrometer (BRS),this study compares the performances,functional advantages,and limitations of the PRSs. The research results show significant quality differences among the five PRSs in terms of various key indicators. Products B and C have the best overall quality; however, product B has a lower output speed, and product C lacks spectral resolution. product A performs well in terms of hardware parameters. Products D and E require further optimization of instrumental performance compared to similar products. The spectral resolution of the BRS is excellent; however,the PRS is more practical in the analytical direction of this study. This study not only provides a reference for the quality supervision of related PRS products in the field of forensic science but also indicates the direction for optimizing and upgrading related products in the future.