姜夔是南宋著名的文学家、书法家、音乐家，在诗、词、曲、书法、书论方面都有很高的成就，对后世影响深远。《续书谱》是姜夔根据自己的心得体会，结合前人经验所做的孙过庭《书谱》的续作。《王献之保母志跋》是其流传下来的唯一墨迹，以清新潇洒的小楷书写，为王献之《保母志》做跋。本文从其出身、所处时代的文化环境入手，对《续书谱》中楷书相关内容从结构、用笔、章法三方面进行分析，并以其墨迹《王献之保母志跋》为例证，分析姜夔在楷书书学理论和楷书实践之间的关联，探讨其在楷书的书写实践中是否遵循了自己的书学理论。

Jiang Kui is a famous litterateur, calligrapher and musician in the Southern Song dynasty. He made great achievements which had a far-reaching influence on later generations such as poetry, music, calligraphy and the theory of calligraphy. He wrote Xu Shupu as a sequel of Sun Guoting's Shpu based on his own feelings and the experience of some predecessors. The colophon of Wang Xianzhi Baomuzhi is Jiang kui’s only one piece of calligraphy work that has been handed down. It is written in a fresh and elegant manner. This thesis introduces Jiang Kui and the background of the Southern Song dynasty first, and then analyzes Jiang Kui’s opinion about the character structure, writing techniques and arrangement of calligraphy in order to deepen the understanding of Xu Shupu. The other purpose of this paper is to take Wang Xianzhi Baomuzhi as an example, discuss the link between the theory and practice of Jiang Kui ’s regular script. Finally identify whether his work follows his own theory on calligraphy or not.