The Ministry of Presidential Affairs, Republic of South Sudan serves as the principal administrative and coordination arm of the Presidency of the Republic of South Sudan. 

The Ministry supports the President in the execution of constitutional duties by coordinating executive business, managing presidential correspondence and protocol, facilitating cabinet processes, and overseeing implementation of presidential directives. 

It acts as the central link between Office of the President, national institutions, and development partners, ensuring efficient service delivery, policy alignment, and orderly conduct of state affairs in accordance with the Constitution and the laws of the Republic.