《福乐智慧》是生活在十一世纪的维吾尔族诗人优素甫.哈斯.哈吉甫写成的著作。十一世纪是维吾尔历史上的多变化、多民族文化互相融合的一个特殊时期。《福乐智慧》的社会背景对于研究中世纪维吾尔社会转型和文化变迁等方面有很重要历史的意义。 “Happiness and Wisdom” is a book written by Yusuf Haas Hajib, a Uyghur poet living in the 11th century. The eleventh century is a special period in the history of Uyghur that involves multiple changes and multi-ethnic cultures merging with each other. The social background of “Happiness and Wisdom” has very important historical significance for studying the social transformation and cultural changes of Uyghur in the Middle Ages.