United Left (IU) scored a record result despite failing to win any new seats, while the Democratic and Social Centre (CDS) was expelled from the regional legislature.

[1] Voting for the General Junta was on the basis of universal suffrage, which comprised all nationals over 18 years of age, registered in Asturias and in full enjoyment of their political rights.

The 45 members of the General Junta of the Principality of Asturias were elected using the D'Hondt method and a closed list proportional representation, with an electoral threshold of three percent of valid votes—which included blank ballots—being applied in each constituency.

[2] In smaller constituencies, the use of the electoral method resulted in an effective threshold based on the district magnitude and the distribution of votes among candidacies.

[1][2][4] The General Junta could not be dissolved before the date of expiry of parliament except in the event of an investiture process failing to elect a regional president within a two-month period from the first ballot.