Lautner, who played Jacob Black in the first instalment, had been a doubt for New Moon after executives at Summit Entertainment were reportedly concerned that the 16-year-old might not be able to carry off the new physical requirements of the character.
However, New Moon director Chris Weitz has ended speculation of Lautner being replaced by revealing that the actor will definitely return for the highly-anticipated follow-up.
"It was my first instinct that Taylor was, is, and should be Jacob, and that the books would be best served by the actor who is emotionally right for the part," he said.
"I think that fans of Twilight the book and the movie will be surprised by the Jacob Black that Taylor will bring to the screen in New Moon; and I'm looking forward to working with him and the rest of the cast in realising the film."
Lautner recently revealed that he had been hitting the gym in a bid to bulk up for the movie, which is scheduled to start shooting early this year.