Traditional Chinese medicine fingerprint detection method and device

The invention discloses a method and a device for detecting a Chinese medicine fingerprint. The detection method comprises the following steps that: firstly, a light source is used for irradiating a sliced sample to be detected; secondly, a light filter is arranged between the sample to be detected and a camera which is used for image pick-up of the sample to be detected; thirdly, the penetration wavelength is adjusted for a plurality of times; the relative position of the camera and the sample to be detected is kept unchanged; the camera is used for taking a plurality of images; fourthly, statistic analysis of a plurality of images taken is performed and the Chinese medicine fingerprint of the sample to be detected is obtained. The method does not need pretreatments such as purification, grinding and so on of the sample to be detected of a traditional Chinese medicinal material, and can directly detect the sample to be detected which is not damaged during the whole detection process, repeatedly detect the sa