Robinson had offers from Alcorn State, Illinois, Louisiana Tech, Middle Tennessee, South Alabama and Tennessee-Martin.
“It felt like a place I could enjoy myself," Robinson said. “They sold me. I think it’s a real good school.”
Robinson visited Southeastern two weeks ago.
The senior led Amory with more than 1,000 yards rushing this season and led the state last season in catches (143), yards (2,291) and touchdowns (21) as a junior.
Robinson will be coached by former Delta State coach Ron Roberts.
The Lions went 5-6 last season, 5-2 in the Southland Conference.