The invention relates to a Raman spectrum system, comprising a detection center, an analyzer, a plurality of detection terminals and a beam divider, wherein the detection center comprises at least one light source for outputting exciting light which can excite an object to be detected to generate Raman scattering light; the analyzer is used for obtain a Raman spectrum of the object to be detected; each detection terminal comprises at least one Raman probe, each Raman probe guides the exciting light to the object to be detected at the same time and also transmits the Raman scattering light generated by the object to be detected back to the detection center; and the beam divider is used for dividing the exciting light output by the light source into multiple beams and comprises one-level or multi-level beam dividers, and a power amplifier is arranged between two-level beam dividers and is used for amplifying the exciting light when the beam divider is of multiple levels.