Aitchison was the club's leading first-class wicket-taker in 2021, and has 40 first-class wickets at 25.07 since arriving at the Incora County Ground in 2020
Ben Aitchison will remain with Derbyshire until at least the end of the 2024 county season after signing a two-year contract extension.
Aitchison, 22, is quickly developing into an important part of the Derbyshire seam-bowling unit.
He was the club's leading first-class wicket-taker in 2021, and has 40 first-class wickets at 25.07 since arriving at the Incora County Ground in 2020.
New head coach Mickey Arthur has been impressed by what he has seen so far from Aitchison.
Ben Aitchison has signed a contract extension at Derbyshire (Tony Marshall/Getty Images)
"Ben is a player we have high hopes for, his attitude and willingness to buy into our project has been really pleasing, and he will be a key player for us over the next few years," he said.
"He's a promising talent and we’ve said from the start that we want to be the county of choice, so to retain Ben is another big step in the right direction."
Aitchison will form part of a seam attack which also includes veteran Sri Lanka quick Suranga Lakmal in 2022.
BEN AITCHISON: CAREER STATSFirst-class: 16 matches, 40 wickets (ave 25.07)List A: 6 matches, 2 wickets (ave 102.5)
"I'm really excited to learn from Suranga and take my game to the next level, and hopefully contribute to more wins for Derbyshire," he said.
"I feel at home with Derbyshire, we have a great dressing room vibe and the opportunity to work with Mickey and Ajmal [Shahzad] every day is something any player would relish."