The performance will be Richard D. James' first performance in his native UK for half a decade (his last being a DJ set, back in October 2012). He is the first artist to be announced by Field Day, and is booked in for a two-hour set at the festival's new indoor arena, The Barn.
On the news, festival co-founder Tom Baker stated: "It's truly amazing to have Aphex Twin headline Field Day, I've been listening to him since I was 16, he played and curated some of the first ever Eat Your Own Ears nights (the most memorable being a warehouse on Brick Lane that got closed down by the police!) so it's an incredible honour to have him play."
Prior to that gig, Aphex Twin will also perform at Day for Night in Texas this December.
Field Day will take place at London's Victoria Park, on June 3, 2017. Tickets for the festival go on sale December 1 at 09:00 GMT.