Abstract: Hanshu Yiwenzhi is the earliest existing bibliography and the programmatic culture summary from pre Qin to Han dynasty in China.The author wants to know about the academic thought of Hanshu Yiwenzhi through the seven big Forewords.The seven big forewords are short but characteristic.They can take the pulse of the pre Qin and Han dynasty academy and have many new discovers,which have extremely high academic value.

Key words: Hanshu Yiwenzhi, qilue, big foreword, academic thought

摘要： 《汉书·艺文志》是我国现存最早的一部文献目录，也是我国第一部史志目录，还是我国先秦至西汉文化的纲领性总结，通过它的七篇大序来“辨章学术，考镜源流”，以期提纲挈领，了解《汉书·艺文志》的学术思想。其七篇大序短小精悍，各有特色，既能紧扣先秦两汉的学术脉搏，又能有所发明，具有极高的学术价值。

关键词: 《汉书·艺文志》, 七略, 大序, 学术思想