《中州音韻輯要》的音韻系統如何？需要靠全書聲、韻、調配合關係的考察，才能徹底明白。本文因受篇幅所限，僅以收－η韻尾的東同韻、江陽韻、庚亭韻為例做討論。首先依據書中反切及聲、韻、調的關係，編成「音節表」，然後再逐表分析說明，內容以各音節的問題討論為主，有時為實際需要，也會涉及反切用字、相關韻書的討論。本文之後，將陸續發表其他陽聲韻部、陰聲韻部諸篇，使《中州音韻輯要》全書的音韻系統能清楚呈現出來，此書在音韻學史的地位究竟如何？本文系列之作，或許可以幫助找到答案。

　　　　　Based on Fan-chieh[反切]in the phonological system of Chung-chou-yin-yun-ji-yao [中州音韻輯要], a series of syllabaries for-η ending syllables have been made. Owing to the restriction of length, the syllabaries presented in this paper are restricted to rhymes of 'Tung-Thung-yun' [東同韻],'Jiang-Yang-yun' [江陽韻]and 'Keng-Thing-yun' [庚亭韻]. Syllabaries of the other rhymes will be continued in following papers. Accompanied with each syllabary is discussion mainly concerned with syllable-related problems. Problems regarding to use of Fan-chieh characters or contents of the rhyme book may occasionally be mentioned.