The versatile forward, who can also operate in the centres, has inked a two-year deal with the Bulls.
“Jason’s had a strong season with Wakefield,” said Bulls coach Rohan Smith, speaking to his club’s official website.
“So we’re lucky to have obtained his services. He’s a player with good leg speed and likes a collision, so we’re looking forward to those aspects of his game being added to our group.
“Jason’s looking for a greater role within a team and wants to be a real feature of the club going forward. So we’re looking for some leadership and maturity from him in the coming seasons.”
Whilst with the Wildcats, Walton worked under Brian Smith, and he is now looking forward to working with his former coach’s son, Rohan, at Bradford.
“I enjoyed playing under Brian because he rated me and showed faith in me,” said Walton.
“I’m looking forward to working with Rohan and hopefully I can show him what I can do as well.
“I always admired the Bulls as I was growing up and I’m really looking forward to finally playing for them.
“From speaking to Rohan and hearing his ideas, I’m certainly confident about next season.”