The concept of sending state, which was mentioned in the Vienna Convention on Diplomatic Relations of April 18, 1961, is essentially a period of mutual diplomacy in the Ottoman state, while the concept of the receiving state makes sense for a period of unrequited diplomacy. After the French Revolution, the change of balances in the international system, the emergence of the concept of the Eastern question, the transition of the Ottoman state to balance policy as a response to this led the Ottoman state to switch to mutual diplomacy. With the Ottoman Empire sending Yusuf Âgâh Efendi to London as its first resident envoy, the position of sending state began in the sense of modern international law. Due to inexperience in the process of sending the first resident envoy, Mehmet Rashit Efendi held a meeting with Lord Ainslie, the Ottoman ambassador to Britain at the time. Based on this meeting, in fact, the first ambassador of residence and the subsequent use of the diplomatic procedure of Europe is a manifestation of the effort to align with existing diplomatic pedestals. The general conclusion of the study is that the diplomatic representation in the Ottoman Empire in the position of the sending state, both in its classification and in the exemptions and privileges it benefits, and in many other titles, is largely similar to the principles of diplomacy of today.