写本《文海宝韵》保留有刻本缺失的序言和卷末题款残片。本文对这些残片拼合整理、翻译后作了初步研究。从中发现了创制西夏文字的记录 ,充实了关于西夏文创制的内容 ,再一次确认西夏文字系元昊时期创制 ,了解到有关细节。还用西夏人撰写的第一手资料印证了西夏元昊称帝时间和加冕等重大史实。由年款和史实记录初步推定《文海宝韵》成书于天赐礼盛国庆年间 ,即 1 1世纪中期 ,属西夏前期 ,其编纂者是以罗瑞智忠为首的一批学者。参与此书编纂的有身居高位的官员 ,有通晓切韵的僧人和学者。序言对本书内容和特点记载表明西夏人对西夏语音科学的认识。从《文海宝韵》和《五音切韵》序分析了二书的关系 ,《五音切韵》将《文海宝韵》中的字纳入到韵图、韵表中 ,两书出于同一个朝代 ,有颇多重复的序言 ,内容相互关联 Writing this “Wen Hai Bao Yun” to retain the missing edition of the preface and the end of the film fragments. In this paper, these fragments were put together, after translation made a preliminary study. Found from the creation of the record of Western Xia characters, enrich the content of the creation of Xixia Wen, once again confirmed the Xixia text department Hao Yuan creation, understand the details. The first hand written by Xixia also confirms the great historical facts such as the time of Xixia Yuanhao’s reign and the coronation. According to the years and records of historical records, “Wen Hai Bao Yun” was first published in the courtesy ceremony during the National Day of Qing Dynasty, that is, in the middle of the 1 st century, belonging to a group of scholars headed by Luo Ruizhi. High officials involved in the compilation of the book, monks and scholars familiar with the cut rhyme. Preface to the content and characteristics of this book records Xixia people’s understanding of the Western Xia voice science. The relationship between the two books is analyzed in the order of “Wen Hai Bao Yun” and “Wuyin Qieyun”. “Five-tone Qieyun” incorporates the words in “Wenhai Baoyun” into the rhyme chart and the rhyme list. The two books are from the same dynasty , There are a lot of repetitive prologues, the content is interrelated