The teenage midfielder has not featured for Palace since Holloway took charge at Selhurst Park but is hoping first-team action for the Bees between now and the end of the campaign can improve his prospects with the npower Championship club.
De Silva must first help move Edgar Davids' side away from the relegation places, a challenge he is relishing.
He told Barnet's official website: "It is very hard to break in and make an impression when the team are flying. Hopefully I can do that whilst on loan.
"It will be great to get some first-team action and I am really looking forward to making an impact at Barnet.
"The team have picked up some good results lately so hopefully I can help keep that up. I am very grateful I have been given the opportunity to come here."