PROBLEM TO BE SOLVED: To provide an inspection device of a plant capable of obtaining a mature degree of the wide range of the plant in a short time and by non-destruction.SOLUTION: The inspection device 100 of a plant includes a spectrum acquisition part 20 for acquiring a spectral reflection spectrum in a first wavelength band A in which a plant P1 of an inspection object is imaged and the spectrum intensity is reduced according as the plant is matured in respective pixels within a predetermined range of the imaged image and a second wavelength band B in which the spectrum intensity is increased as the plant is matured and a calculation part 30 for calculating the matured degree of the plant using the spectrum intensity of the first wavelength band and the second wavelength band of the spectral reflection spectrum of the first wavelength band and the second wavelength band.COPYRIGHT: (C)2016,JPO&INPIT【課題】短時間且つ非破壊で、植物体の広範囲の成熟度を得ることができる植物体の検査装置を提供する。【解決手段】植物体の検査装置100は、検査対象の植物体P1を撮影し、撮影された画像の予め定められた範囲内の各画素において、植物体が成熟するに従ってスペクトル強度が減少する第1波長帯Aと、植物体が成熟するに従ってスペクトル強度が増加する第2波長帯Bと、における分光反射スペクトルを取得するスペクトル取得部20と、分光反射スペクトルの第1波長帯及び第2波長帯のスペクトル強度を用いて、植物体の成熟度を算出する演算部30と、を備える。【選択図】図1