Sashen harkokin waje yana ɗaukar nauyin dukkan harkokin waje, waɗanda suka shafi dangantakar Daular Khilafah da ƙasashen waje, ko menene waɗannan harkoki da dangantaka suke. Ko suna da alaƙa da fannin siyasa da abin da ya ƙunsa na kulla yarjejeniyoyi, yarjejeniyoyin zaman lafiya, tsagaita wuta, tattaunawa, naɗa jakadu, aika manzanni da wakilai, da kafa ofisoshin jakadanci da ofisoshin ƙasashen waje. Har ila yau ya haɗa da dangantakar da ke da alaƙa da al'amuran tattalin arziki, noma, da kasuwanci, da kuma sadarwar gidan waya ko sadarwar waya da mara waya, da sauransu. Dukkan waɗannan al'amura sashen harkokin waje ne ke gudanar da su, saboda suna da alaƙa da dangantakar Daular Khilafah da sauran ƙasashe.

The foreign affairs department undertakes the responsibility of all foreign affairs, pertaining to the relation of the Khilafah State with the foreign States, whatever these affairs and relations may be. Whether they are related to the political aspect and what it entails in the forming of pacts, peace treaties, cease-fires, negotiations, appointing ambassadors, sending messengers and delegates, and establishing embassies and consulates. It also includes relations, which are related to matters that are economical, agricultural, and are to do with trade as well as postal communications or wire and wireless communications etc. All of these matters are run by the foreign affairs department, because they are concerned with the relations of the Khilafah State with other States. .