Detection device and method of laser confocal Raman spectrometer

The invention discloses a detection device and method for a laser confocal Raman spectrometer in the technical field of Raman spectrometers, and the detection device comprises a base, a supporting plate is fixedly connected to one side wall of the base, a supporting frame is fixedly connected to the upper part of the side wall, close to the base, of the supporting plate, and a detection device is arranged in the supporting frame; the detection device comprises a detector and a first cooling device, the detector is fixedly connected with the supporting frame, the first cooling device comprises a controller, a hydraulic cylinder and a first semiconductor chilling plate, the output end of the hydraulic cylinder communicates with a first hose, the first hose is wound around the first semiconductor chilling plate and the side wall of the detector, and the first hose communicates with the input end of the hydraulic cylinder; a first temperature sensor is fixedly connected to the inner side wall of the supporting fr