The diplomatic relations between Albania and Bulgaria were established in April 1913 and on 10 October 1922, Konstadin Boshniak presented his Letters of Credence as Head of Albanian Legation in Sofia.

From the early 60s onward the Embassies of the two countries were headed by Charges d`affaires and on 25th of January 1988, an agreement was concluded for an exchange of Ambassadors.

The Byzantines gradually conquered the remainder of Albania with the decline of the First Bulgarian Empire, taking the last mountain fortresses in 1018–1019.

The decline of Bulgaria continued and the country lost its last fortresses in Albania under Constantine Tikh Asen (1257–1277).

During the Second Balkan War, Albanians helped Bulgaria and sent troops led by Isa Boletini.