The television personality and former NFL star will start his full time duties at GMA in September.
"I look forward to continuing to work with the incredible team at GMA. It is an exciting opportunity to be able to bring unique stories and voices to the audience," Strahan said. "My time with LIVE with Kelly and Michael has been transformative, and my departure will be bittersweet. Kelly has been an unbelievable partner, and I am so thankful to her and the entire team. I am extremely grateful for the amazing support I've received from all of the fans."
GMA anchors George Stephanopoulous and Robin Roberts tweeted their enthusiasm for Strahan's move.
Strahan, 44, became Kelly Ripa's permanent co-host on the long-running talk show in 2012. He joined Good Morning America in 2014 as a part-time correspondent. Strahan is also known for his 15-year NFL career, where he helped lead the New York Giants to victory in Super Bowl XLII.