I'm going to upgrade some servers from 2008 to 2016 clean install, the servers are domain controllers and file server, is it possible to use the same name and ip when I turn off the old server, what's recommended in this case since many services will be pointing to the old name and IP

Yes.

commented: He didn’t ask a yes/no question. He asked what is recommended. -4
commented: This is a yes/no question: "is it possible to use the same name and ip when I turn off the old server" +15