The new goal-line technology system uses seven cameras and referees in Premier League games will now receive an instant message to tell them whether or not the ball has crossed the line.
"It's fantastic," Marriner told Sky Sports News at the Premier League new season launch. "It's something football has been crying out for.
"There has been a lot of publicity, goals given incorrectly and not given over that last three seasons or so, and I think it is something we will welcome."
Marriner also believes the Goal Decision System will take a lot of pressure off referees in the forthcoming season.
"Something like goal-line is a matter of fact, if the ball has crossed the line or not, so anything that helps us arrive at the correct decision is what we want," he said.
However, Marriner is not in favour of the use of technology for other key decisions.
He added: "Hopefully I don't think it should come in across other decision making processes.
"With goal-line it is a matter of fact whether the ball has crossed the line or not whereas everything else - penalty decisions or fouls - is all down to the opinion of the referee.
"The pundits sometimes disagree with certain decisions but I think that should stay with the referee."