asty; filial piety(上接第 30 页)The Research of the Direct Secretary (SiZhi) in Han DynastyZHANG Li-peng(School of History and Culture, South China Normal University, Guangzhou 510631, China)Abstract: The Direct Secretary (SiZhi) is an indispensable monitoring force in Han Dynasty. It is set up in the pe-riod of the Emperor Wu of Han, then revocated in the early Eastern Han, and reset in the late Eastern Han Dynastyfor each historical reason. We can clearly prove its track in the Han Dynasty by the former record. Official functionsare reflection of the reality. From its mainly functions, for example: admonition, prosecution, impeachment andethics controling, we could know better the position of the Direct Secretary in Han Dynasty.Key words:Han Dynasty; the Direct Secretary (SiZhi); functions43