A £125m contract has been agreed with Setanta Sports to continue the rights to live SPL matches for a further four years until 2014.
SPL executive chairman Lex Gold said: "£125m marks the biggest-ever TV deal in Scottish football history.
"This will allow clubs to re-invest to make the Scottish game even stronger."
Setanta's present contract, which ends in 2010, was worth £54.5m.
The new deal - more than twice the value of the present one - will extend the current partnership from the start of season 2010/11 through to the end of season 2013/14.
As with the present contract, 60 games will be covered live each season for broadcast across the UK and Ireland.
"Ten years ago, we spoke about delivering a brighter future for Scottish football," said Gold.
"Today, as we look ahead to our next 10 years, we can do so with confidence.
"No commercial deal comes close to matching what has been achieved today by the SPL and Setanta Sports for our game.
"We have moved forward with Setanta Sports over the past four years.
"We look forward to working with them to continue building and developing our league."