| Country | Ireland England |
||
|---|---|---|---|
| Champions | London | ||
| Runner-up | Down | ||
|
|||
The All-Ireland Senior B Hurling Championship of 1988 was the 15th staging of Ireland's secondary hurling knock-out competition. London won the championship, beating Down 2-6 to 1-7 in the final at the Emerald GAA Grounds, Ruislip.