The broadcasters said Tebow will primarily work on the "SEC Nation" pre-game show while also appearing as an analyst in a variety of ESPN programs as part of a multiyear agreement.
The ex-Florida star will make his debut before next week's BCS National Championship Game between Florida State and Auburn.
After leading the Gators to two national titles, Tebow has seen limited success in the NFL with Denver and the New York Jets and his pro career stalled when New England cut him prior to this season.
ESPN said Tebow's new role wouldn't prohibit him from playing again.
Known for his outspoken Christian and anti-abortion views, Tebow ignited a controversy over the place of religion in sports in last year.
In February he canceled a scheduled appearance at a Dallas mega-church led by Pastor Robert Jeffress, whose views on other religions and homosexuality have drawn much criticism, USA Today reported.