There are examples where the Sino-Korean included in the modern 『Jeonunokpyeon』 are reflected differently in modern dictionaries. However, since it is difficult to determine whether the Sino-Korean are newly added or changed by comparing only the Sino-Korean, it is necessary to comprehensively examine the correspondence between Fanqie and Sino-Korean and the contents of the characters of 『Jeonunokpyeon』. This study aimed to find the background and cause of the changes in Sino-Korean by targeting examples where the Sino-Korean reflected in 『Jeonunokpyeon』 are inherited in the meaning but the Sino-Korean are changed in modern Sino-Korean dictionaries. In the results, the changing aspects of Sino-Korean can be organized by type as follows. First, it is a type where the Sino-Korean changes by reflecting the Sino-Korean that existed as the actual Sino-Korean instead of the Sino-Korean reflected in 『Jeonunokpyeon』. Second, it is a type where the Sino-Korean changes by reflecting the rhyme and phonetic sound of Fanqie instead of the Sino-Korean reflected in 『Jeonunokpyeon』. Third, it is a type where the Sino-Korean changes by applying the Fanqie method based on the modern sound of Fanqie instead of the Sino-Korean reflected in 『Jeonunokpyeon』. Fourth, it is a type where the Sino-Korean changes by reflecting thethe common sound in the characters of 『Jeonunokpyeon』. Fifth, it is a type where the Sino-Korean changes due to other factors. There are also simple errors or influences from Xiesheng characters, and there are also cases where the Sino-Korean changes by reflecting other Sino-Korean of Sino-Korean with the same Fanqie.