Hiromichi MORI commented in "Nihon shoki no nazo o toku" (Solving the Enigma of the Chronicles of Japan) published in 1999 as follows: 'Considering the grammatical deviations affected by Japanese (washu) in the kanbun (Chinese classics) used in The 17-Article Constitution, it is unlikely that the Constitution was established in the seventh century, and it was created at the time when the "Nihonshoki" was compiled.'
森博達は1999年の『日本書紀の謎を解く』において、「十七条憲法の漢文の日本的特徴（和習）から7世紀とは考えられず、『日本書紀』編纂とともに創作されたもの」とした。