This cognitive function evaluation device (100) is provided with: an acquisition unit (110) which acquires sentence voice data that represents a voice uttered by a person to be evaluated according to an instructed sentence； a calculation unit (120) which calculates, from the sentence voice data acquired by the acquisition unit (110), a feature amount based on the sentence voice data； an evaluation unit (130) which evaluates a cognitive function of the person to be evaluated by collating the feature amount calculated by the calculation unit (120) with reference data (151) that indicates a relationship between voice data that indicates a voice uttered by a person and a cognitive function of the person； and an output unit (140) which outputs a sentence to be uttered by the person to be evaluated and outputs an evaluation result evaluated by the evaluation unit (130).本發明之目的在提供一種認知功能評估裝置，其可簡便且高精度地評估被評估者的認知功能。 本發明之認知功能評估裝置100，包含：取得部110，其取得表示被評估者依照指示之語句而說出之語音的語句語音資料；計算部120，其從取得部110所取得之語句語音資料，計算出基於該語句語音資料之特徵量；評估部130，其藉由將計算部120所計算之特徵量，與呈現表示人所說出之語音的語音資料與該人之認知功能之關係的參照資料151進行對照，而評估被評估者的認知功能；及輸出部140，其輸出使被評估者說出之語句，並且輸出評估部130所評估之評估結果。
