宋承唐、五代之制,在中央机构中设置枢密院,掌管全国军务。唐代宗永泰元年(765),始命宦官任内枢密使。若按正规官制而言,当时的枢密使是内廷之官。然而宦官冠以枢密使者,简直以内廷的宰相自命,与中书门下、翰林学士鼎足而三。“其职掌唯承受表奏,于内中 Song Cheng Tang, the Five Dynasties system, set up in the Central Organization Privy Council, in charge of the national military. The first year of the Tang Dynasty Yongtai (765), the eunuch was appointed as internal secrets. According to the official system, the secret administration at that time was the official of the court. However, the eunuch was crowned with secret envoys, and was almost self-inflicted by the prime minister of the inner court. Under the book of letters, the Imperial Academy graduated in great numbers. ”The only charge of their performance, in the middle