During the Edo period, scholarly researchers in the discipline of Japanese literature and culture came to widely accept the validity of the theories (for example, "Bukejiki" [the account of the military houses] by Soko YAMAGA); this positively supported the Sankan-Seibatsu, and the subsequent use of the Sankan-Seibatsu was legitimate as a central thesis for the battles of Bunroku and Keicho.
江戸時代に入ると国学研究の中で三韓征伐、およびそれを大義名分とした文禄・慶長の役を肯定的にとらえる論説（山鹿素行『武家事紀』など）が広まるようになった。