The non -invasive blood glucose detection device based on the Raman scattering spectrometer includes semiconductor lasers, fiber fiber signs, optical fiber probes, filters, Raman spectrometers, first circuit switches, second circuit switchesYimen computer; the present invention uses the rich molecular vibration information contained in Raman's scattered light, and uses different molecular scattering spectra to identify the molecules with the Raman scattered spectrum, through the pure blood, through the pure blood1125cm in Raman scattering spectrum ‑1 Glucose characteristic peak for 1549cm ‑1 The relative values of the peak value of hemoglobin at the point and the real -time human blood glucose concentration data measured by the blood glucose biochemical meter measurement, establish 1125cm ‑1 The relative peak of glucose characteristics peaks and human blood glucose concentration standards straight line L, eventually realized non -invasive and real -time testing of human blood sugar; the present invention has the advantages of high accuracy, pollution -free, harmless to the human body, and in the field of biological non -invasive testing.Wide application prospects.