Says the publisher had previously not even acknowledged MMA as a real sport.
UFC president Dana White has labelled EA sports a joke.
White's comments came shortly after EA Sports president Peter Moore took to the stage at the publisher's E3 media briefing to showcase a number of upcoming titles, including MMA.
Posting on Twitter, White said: "EA sports is a joke and told me when I talked to them that mma is NOT a real sport and they would NEVER make an mma video game."
Earlier today THQ revealed that sales of its UFC 2010 video game had been slower than expected.
EA's MMA is scheduled for release on October 22, 2010.