The invention discloses a raman spectrum enhancement measuring
system which comprises a
grating spectrometer, a light emitting / receiving probe, a sample tank and a
laser light source, wherein the sample tank is a
liquid core waveguide tube sample tank, the
liquid core waveguide tube sample tank comprises a
liquid core waveguide tube, the liquid core waveguide tube is arranged in a sealed chamber,an incidence window is arranged on the sealed chamber and at the position right facing a
pipe opening of the liquid core waveguide tube, an emergence window is arranged on the sealed chamber and at the position right facing the other
pipe opening of the liquid core waveguide tube, the
laser light source can irradiate the incidence window of the sample tank through an exciting light path in the light emitting / receiving probe, and the emergence window of the sample tank can irradiate the
grating spectrometer through a
signal detecting light path in the light emitting / receiving probe. The raman spectrum enhancement measuring
system disclosed by the invention can solve nonlinear and uneven enhancement phenomena in gold, silver and the like nano
enhancement technologies and makes up the problemthat an enhancement effect of liquid core waveguide is insufficient at the same time, so that the raman enhancement technology can achieve better application in
pesticide residue detection.