Crop growth monitoring method and device based on hyperspectrum

The invention relates to a crop growth monitoring method and device based on hyperspectrum, and belongs to the field of optical detection. Obtaining at least one data of carotenoid abundance index and chlorophyll absorptivity index of the to-be-detected crop according to the obtained spectral reflectance of the to-be-detected crop at different wave bands, and detecting the growth process of the to-be-detected crop according to the carotenoid abundance index and/or chlorophyll absorptivity index. Inverting the carotenoid abundance index to obtain the carotenoid abundance of the to-be-detected crop leaf, and judging the health condition of the crop by comparing the carotenoid abundance of the to-be-detected crop leaf with the carotenoid abundance range of the crop in the healthy state; and performing inversion by using the chlorophyll absorption rate index to obtain a green leaf area index of the to-be-detected crop, and judging the growth condition of the to-be-detected crop by using the green leaf area index