The England under-21 midfielder has shot to fame over the last six months, with his performances defying his tender age of 17.
With Barkley set to turn 18 in December, the Merseyside outfit are ready to offer him a long-term deal to ward off any potential suitors.
Chelsea have been rumoured to be tracking the playmaker’s status, and Moyes knows he will be in a fight to keep his starlet at Goodison Park.
“Every club will want Ross as he is going to be an outstanding player,” the Scottish coach told The Daily Mail.
“I’m worried it will be a difficulty for us in the future. If someone comes for Ross I’ve always said it it’s expensive to buy off Everton. If you’re going to come and try to take our better players we don’t sell cheap, that’s for sure.
“I’m sure the bigger clubs will be looking at him, but we’ve no intention of selling. I think we’ve got the team to carry Ross. The club is in a much better position (than with Rooney),” he concluded.
Chelsea were rumoured to be willing to pay £20 million for the youngster’s services, and Moyes will be keen to tie the promising youngster down to a long term contract come December.
By Gareth McKnight