The viceroy was one of the ancient military commanders in China, which flourished in the Three Kingdoms, then developed into a local military commander and later became a central military commander. In the early years of the Republic of China, there were also governors in all provinces, who were also in charge of civil affairs.

Assistant minister, official name. A kind of Langguan in Han Dynasty was originally a court attendant. After the Eastern Han Dynasty, Shang Shu became an official. He was called a doctor at first, Shang Shulang for one year and assistant minister for three years. Since the Tang Dynasty, all ministries in Zhongshu, Xiamen and Shangshu provinces have taken assistant ministers as their deputies, and their official positions have gradually increased. It is equivalent to the current ministerial level and deputy ministerial level.