PROBLEM TO BE SOLVED: To provide an internal quality measuring instrument of agricultural products easy to carry.SOLUTION: The internal quality measuring instrument of agricultural products includes a light projecting and detecting part L equipped with a projection means 1 for projecting light on a measuring target article positioned at a measuring place P and a light detecting means 2 for detecting the light from the measuring target article on which light is projected from the projection means 1 and a spectroscopic measuring part M equipped with a spectroscopic means 30 for spectrally diffracting the light detected by the light detecting means 2 to be guided by a light guide means 3 and a light intensity detecting means 4 for detecting the intensity of the light spectrally diffracted by the spectroscopic means 30 at each wavelength. The light projecting and detecting part L and the spectroscopic measuring part M are provided in a casing 40 having a suspending support handle 10 provided to its upper part in a form that the spectroscopic measuring part M is positioned under the light projecting and detecting part L.COPYRIGHT: (C)2010,JPO&INPIT【課題】持ち運びが容易な農産物の内部品質計測装置を提供する。【解決手段】計測箇所Pに位置する被計測物に光を投射する投光手段1及びその投光手段1から光が投射された被計測物からの光を受光する受光手段2を備えた投受光部Lと、受光手段2にて受光されて光案内手段3にて導かれる光を分光する分光手段30及びその分光手段30にて分光された光の強度を波長毎に検出する光強度検出手段4を備えた分光計測部Mとが設けられた農産物の内部品質計測装置であって、投受光部L及び分光計測部Mが、吊り下げ支持用の把手10を上部に備えたケーシング40内に、分光計測部Mを投受光部Lの下方に位置させた形態で設けられている。【選択図】図3