A device for collecting surface-enhanced Raman scattering spectra using a full-aperture-angle parabolic mirror. The device is a small-sized ultra-sensitive SERS Raman spectroscopic enhanced probe and a spectrometer, a surface plasmon resonance (SPR) Raman spectroscopic probe and a spectrometer, a spectrum analyzer having triple functions of an SPR Raman/absorption dual-spectrum and refractive index, a flow particle Raman analysis/micro-fluidic Raman analysis probe and a spectrometer, a minimally invasive flexible lumen Raman spectroscopic probe and a spectrometer and a Raman intelligent surgical scalpel. An external reflective or internal reflective parabolic mirror at full aperture angle is adopted to collect Raman scattering systems and SERS substrates to ensure ultra-high sensitivity. A portable and hand-held Raman spectrometer would be widely applied to various trace analysis such as food safety and early-stage cancer screening, environmental safety screening and detection.