The actor dropped out of school at the age of 14, but has now announced that he intends to return and get his diploma, E! Online reports.
He will complete his studies via an online programme, rather than attending a physical school.
"I've got to take up all the courses that I missed," Wahlberg told David Letterman, "and I'm a little nervous.
"They're going to give me whatever credits I already have, which is probably like one or two. But I'm going to make it happen."
Wahlberg recently offered an update on his film collaboration with Justin Bieber, stating that he wants to wait until the script is "perfect".
Wahlberg's next film Ted is released on June 29 in the US, and August 1 in the UK. Watch a trailer below: