The office service center is a public institution directly under the State Post Bureau, and its main responsibility is to be responsible for the logistics service guarantee of the bureau and perform the duties of logistics administration. The main functions are: responsible for housing system reform, government procurement, traffic safety, capital construction, comprehensive management of social security, environmental order, energy conservation and emission reduction, patriotic health, civil air defense, greening management, family planning and other work; Responsible for the management of fixed assets such as houses, land, vehicles and office equipment; Responsible for liaison with State Taxation Administration of The People's Republic of China; Complete other tasks assigned by bureau leaders. There are two offices under the center: comprehensive management office and service management office.

The Office Service Center of the State Organs Administration Bureau is a public institution affiliated to the State Organs Administration Bureau, and its main responsibility is to provide service guarantee for the office and workers' life of the bureau and other relevant units.