Objectives : The purpose of this study is to investigate which system the FanQie notation of "Taisu(太素)" followed by comparing FanQie notation appearing in "Taisu", with the Sound button(聲紐) and Rhyme system(韻類) of the FanQie notation appearing in the "Qieyun(切韻)" system phonology book and "Guangyun(廣韻)".
Methods : Followed by organizing the FanQie list in "Taisu", in comparing this list with the top and bottom characters of FanQie in the "Qieyun" system phonology book and "Guangyun", this study explores the similarity of the system after noting the Sound button and the Rhyme system.
Results & Conclusions : 1. Compared to FanQie of "Taisu" with that of "Qieyun" system, the Sound button and Rhyme system were 61.54% identical, and when comparing FanQie of "Taisu" with that of "Guangyun", the Sound button and Rhyme system were 55.45% identical. 2. Comparing FanQie top and bottom letters themselves of the "Taisu" and "Qieyun" system, of the 217 FanQie sound notation Chinese characters, FanQie top and bottom letters of 18 characters were the same, accounting for 8.29%, and when compared to the "Taisu" with the FanQie top and bottom characters of "Guangyun", 15 FanQie top and bottom characters were the same, accounting for 6.91%. 3. Of the total 11,500 characters in "Qieyun", the ratio of FanQie notation Chinese characters in "Taisu" was 1.89%, and among them, nine characters came out in "Taisu" FanQie notation while there was none in "Qieyun". This accounted for 4.15% of 217 FanQie notation sound Chinese characters in "Taisu", demonstrating that this represented a relatively high ratio. 4. Conclusionally "Taisu" was more closely related to "Qieyun" system phonology book than "Guangyun" in FanQie notation, and there is also a possibility that Yang Shangshan has created some FanQie notation by himself or additionally referred to other phonology books that are not "Qieyun" system phonology book.