The forward, who signed for the Eagles at the start of 2015 from Barton Rovers, links up with the Robins who are ninth in League Two, having been relegation from the third tier last season.
Despite not yet making a first-team appearance for Palace, the 22-year-old gained experience on loan at Doncaster Rovers in 2015 as well as stints at Bolton Wanderers and Northampton Town last season.
He featured for Frank de Boer’s team during the most recent pre-season, including starting the first game of the Premier League Asia Trophy against Liverpool in Hong Kong, and was on the bench in the Eagles' most recent Premier League game against Swansea City.