PROBLEM TO BE SOLVED: To provide a proposal device, a proposal method and a program to support the work of revising a patent classification. SOLUTION: The proposed device is an extraction unit that extracts a plurality of terms from a plurality of patent documents, and an acquisition unit that acquires a score regarding the importance of the terms in the patent classification based on the appearance degree of each of the plurality of terms. And a selection unit that selects at least one of the plurality of terms based on the scores of each of the plurality of terms, and a proposal that proposes an amendment of the patent classification based on at least one term selected by the selection unit. Includes parts and. [Selection diagram] Fig. 2
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