The footballer will taste local beers before the festival officially opens and then name his favourite.
Last year, around 3,500 people attended the event and a record-breaking 2014 is expected.
Bournemouth Folk Club will perform live throughout the weekend, which is sponsored by Hot Rocks Restaurant and supported by 106 Jack FM.
The festival will take place on Saturday from noon until 5pm and 6.30pm until 11.30pm, and on Sunday from 3pm.
Friday tickets are already sold out.
For more information, call 0844 576 3000.