The tournament started on 28 August 2009 with the first round and ended on 27 March 2010 with the Final.
Portadown were the defending champions after their second League Cup win last season; a 1–0 victory over Newry City in the previous final.
This season however, they went out at the semi-final stage to eventual winners Glentoran, who defeated Coleraine 4–1 on penalties in the final after the game finished 2–2 following extra time.
This was Glentoran's seventh League Cup win, and the eleventh time in thirteen years that the cup had been won by one of Belfast's Big Two.
[1][2] The first legs were played on 28, 29 August and 1 October 2009.