There are no tusi in Tibet now, and tusi is equivalent to the current governor.

The tusi system is a form of organization and a system of local power established by the Yuan, Ming and Qing dynasties in minority areas. "Tusi", also known as "Tuguan", was a local official appointed and appointed by the central government of the feudal dynasty, and "Shiguan, Shidu, Shimin" was its important feature, i.e., hereditary political dominance, hereditary ownership of land, and hereditary rights to the attached land. The hereditary right of political rule, the hereditary right of ownership of the land and the hereditary right of rule over the peasants attached to the land are its important features.

The main form of exploitation of the serfs by the Tusi was labor and rent. In addition to providing heavy unpaid labor, the serfs also had to pay or pay tribute in kind to the Tois.

Expanded:

The Ming Dynasty was the heyday of the tusi system, but at the same time, due to the need to strengthen centralized power, it began to restrict the power of the tusi. The Ming Dynasty was the heyday of the Tusi system, and at the same time, due to the need to strengthen centralized power, it began to restrain and weaken the power of the Tusi, and therefore was the starting point of the collapse of the Tusi system.

After the Ming Dynasty pacified Yunnan, from Hongwu to Zhengtong (1368-1449), various measures were taken and even wars were fought to crush the border crisis triggered by the separatist force of Luchuan, and the southwest border area was greatly expanded.

Ming Dynasty territory at its peak included almost all of present-day Myanmar, the traditional border political system has been unable to meet the needs of border control at this time, in order to adapt to the new situation of social development of the southwest border, the Ming Dynasty in the southwest border gradually established a set of "inner border" and "outer border" management system.

The Ming Dynasty gradually established a set of "inner border area" and "outer border area" in the southwest border area to manage the political zone system in a hierarchical manner, which profoundly affected the development of the southwest border area and the formation of the territory.

Baidu Encyclopedia - Tusi System