In this paper, I took out the independence words which is collected to "Senjyakuhongan Nenbutusyu Nobegaki (選擇本願念佛集延書)" in the possession of the SENJUJI (専修寺) temple, and examined the writing system, which the Chinese loanword is written by Chinese characters and the Words of Japanese origin is written by Katakana. And, I compared it with the original "Senjyakuhongan Nenbutusyu (選擇本願念佛集)". As a result, I clarified the following points of the marks of words of Japanese origin, that the mark of most Chinese characters used for the book is followed from the original, and if it do not follow the Chinese character mark, it was witten by Katakana or written most general Chinese character at that time.