Giggs is closing in on 800 appearances for United and Van der Sar believes the record will never be equalled.
“It would be hard to beat that record,” said the veteran Dutchman.
“There are so many changes now with transfers and everything else and Ryan started out early.
“You will not see anything like that in future.
“And the thing is he is still going strong. It is as though he is only 31.”
He added: “It is a joy to see how he trains as well as plays.
“How he controls the ball, how he sees a pass and the runs he makes. He can read a game and adjust the way we play.
“He shows such dedication every day and sets the example for everyone.”