The 20-year-old prop forward, whose twin brother Rhys plays for Warrington and England Knights, will join his Wolves team-mate Matty Blythe on a season-long loan at Odsal.
Bridgend-born Evans, who represented England at Academy level, has yet to make his Super League debut but featured in both Wales' recent internationals against France and England.
"When (Warrington coach) Tony Smith suggested the idea of going out on loan I grabbed it with both hands," he said.
"Like Blythey, I want to be playing every week in Super League and going to Bradford provides the opportunity to try and do that."
Bradford coach Francis Cummins said: "Ben is young and keen to learn and I am really looking forward to having him on board."
The Evans twins were spotted in schoolboy rugby and signed professional terms with Warrington in 2009 after moving up from south Wales with their mother two years earlier.