The Ministry of Interior is a ministry established on April 1, 1892, with His Royal Highness Prince Damrong Rajanubhab as Minister responsible for interior affairs or the administration of the country, and duties have been divided between the ministries of the interior. and the Ministry of Defense to make it clear that there is no overlap by having the Ministry of Interior be responsible for consolidating the command of all provinces into just one ministry.
The Ministry of Interior was initially divided into 3 departments, named after the original directory but with different duties:
•The Central Department of Interior is the employee who does everything. which should not be separated into duties of other departments
•The Northern Department of the Interior has been assigned as an officer in the Crime Suppression Division and the Prosecution Department, including dealings with foreigners. (But afterward, matters related to foreign countries were transferred to the duty of the Permanent Secretary to present to Chalong)
•Department of the Interior, Phlaphang Division, to be an official of the local administrative department.
for governance in the region Established a form of government called "Thesaphiban" and assigned the Ministry of Interior to be responsible for taking care of it by dividing the cities into provinces. Cities and districts with a council chief The city governor and district chief are the rulers who command officials and take care of the welfare of the people in their respective localities. The village headman is the one who helps them perform work at the sub-district and village levels. The Department of Interior, Palam Phang Division, is therefore the origin of the Department of Provincial Administration, which has changed its name and improved the division of internal government departments as follows:
•BE 2458 Krom Phalampang There are sub-government agencies. namely the Administrative Department and the Northern Department.
•BE 2459, Department of Lam Phang has sub-government departments. namely the Department of Local Administration and the Department of Political Affairs.
•BE 2460, the Administrative Department has two government departments: the local government department and the political department.
•BE 2466 Krom Phalampang There are sub-government departments, namely the Administrative Department and the City Department.
•BE 2467 Krom Phalampang There are sub-government departments, namely internal and external departments. and the Registration Department
•1926 Krom Phalampang There are sub-government departments, namely the Administrative Department, Registration Department and Corrections Department.
After the change of government in 1932 from an absolute monarchy to a regime Democracy in 1933, the Lampang Department changed its name to the Department of Interior. Later, in 1962, the name was changed to "Department of Provincial Administration" until now