The role of Xiao Huangmen was a role for a eunuch in the Han dynasty.[1] The position, with a salary-rank of 600 shi or dan, involved delivering and receiving messages between the imperial palace apartments and the outside court.
A Xiao Huangmens responsibilities were to follow the emperor, receive Shangshu memorials, preach the emperor's orders, and handle communication between the emperor and the harem inside and outside the palace.[2]
The position's responsibilities and level of authority changed over time.