The 32-year-old actor has signed a two-year agreement with the network that will see a salary increase of $100,000 (£64,000) per episode, reports Deadline.
On Criminal Minds, Gubler plays the intelligent Dr Spencer Reid, who is part of the FBI's Behavioural Analysis Unit in Virginia.
Big Love's Jeanne Tripplehorn was previously cast on the show as a replacement for Paget Brewster, who exited the series after six seasons.
Criminal Minds exec Erica Messer said that it will be difficult to introduce a new character.
"It's unlike most shows in that sense that changing out characters can be a really difficult thing to do, and we've learned that," she explained.
"I can [also] see this team going on as they are, because one of the hardest things for all of us writing it and fans is to introduce a new person to that round table. It's such a family."
Watch a clip of Criminal Minds below: