The final, usually held in early February, serves as the culmination of a series of games played during the winter months, and the results determine which county's team receives the cup.
The championship has always been played on a straight knockout basis whereby once a team loses they are eliminated from the series.
In the present format, it begins in October with provincial championships held in Connacht, Leinster, Munster and Ulster, with the four respective champions contesting the subsequent All-Ireland series with the British champions.
St Lachtain's are the title-holders, defeating Russell Rovers in the 2025 final.
The GAA Hurling All-Ireland Junior Club Championship features five teams in the final tournament.