本文从伊儿汗国合赞汗实行“伊斯兰法”而造成汗国经济得到恢复并发展、中央集权得到加强并巩固、文化繁荣这一客观史实入手,初步探讨了合赞汗实行“伊斯兰法”的原因。主要包括:13世纪20至90年代汗国面临深刻的社会经济危机;传统守旧势力蠢蠢欲动并伺机夺取汗位;极为不利的国际环境;伊斯兰文化及其生活方式的影响。 This article starts from the objective law of Islam, which is caused by the implementation of “Islamic Law” by the Iraqi Khanate and Zhanhan, which resulted in the restoration and development of Khanate economy, the strengthening and consolidation of centralization of power, and the prosperity of culture. s reason. Mainly include: Khanate facing the profound socio-economic crisis from the 1920s to the 1990s; the traditional conservative forces ready to take advantage of positions to seize the sweat bit; extremely unfavorable international environment; Islamic culture and the impact of their way of life.