The rapper is said to be planning so many costume changes that she needs a separate area to store her hair pieces.
Organisers have apparently arranged a Winnebago for the backstage Virgin Media Louder Lounge, nicknaming the area the 'Wiggy-bago'.
A source told PA that Minaj has also asked for "at least 20 wig stands, 10 cans of hairspray, 300 hair pins, five combs, spare wig caps, and a 360 degree mirror."
V Festival is due to take place on August 18 and 19 in Essex and Staffordshire.
The Stone Roses, Happy Mondays, Sir Tom Jones, Snow Patrol, Ed Sheeran, Tinie Tempah, Example and Olly Murs are also scheduled to perform at the festival.
Minaj was recently grabbed by an overexcited fan while on stage in Florida, with security guards having to rescue her from the man.
Watch Nicki Minaj's video for 'Starships' below: