STAR forward Eddie Betts will finish his career in Adelaide after agreeing to a contract extension until the end of 2020.

The 30-year-old has signed a new three-year deal with the Crows after joining the club at the end of 2013 from Carlton.

"The club is in great shape and we have such a positive environment where everyone works really hard but also knows how to make it enjoyable as well," Betts said.

"Playing finals footy is what it is all about and after experiencing that the last couple of years I know this playing group is capable of much more.

"Everyone at the club has been really good to me and I love our fans too.

"They have made my family and I feel so welcome from the first day I arrived."

Betts, who has played 83 consecutive games, hasn't missed a match since joining the Crows and has topped the club's goal-kicking in each of the past three years.

It was that reliability that gave the Crows the confidence in offering Betts, who will turn 33 in the final year of his contract, a long-term deal.

"It was a bit weird because I think the Adelaide Crows have never offered a 30-year-old three years," Betts said.

"They approached me and said, 'How long can you play for?

"I said probably another three years, so that's how it played out from there.

"I grew up barracking for the Adelaide footy club and I'll probably, not probably, I will end my career here."

Betts has taken his game to another level since joining the Crows.

He has booted 189 goals in his 69 games at an average of 2.74 per game, compared to 290 goals in 184 appearances for the Blues (1.58 per game).

The cult hero kicked a career-high 75 goals last season to finish third in the Coleman Medal.

He was recognised with his second-consecutive All Australian blazer, finished runner-up in the Crows' club champion award and top-five in the peer-voted AFL Players' Association MVP trophy.

He also won Adelaide's coveted Phil Walsh Best Team Man Award, and claimed back-to-back Goal of the Year crowns – both winners were kicked on the opposite side to the 'Eddie Betts Pocket' under the old scoreboard at Adelaide Oval, where adoring fans chant his name.

General manager list management and strategy, Justin Reid, said Betts was an elite player who had developed into an influential leader on and off the football field.

"Everyone knows that Eddie is a special talent, but he also understands and contributes to our team-first approach and culture," Reid said.

"His durability is testament to the way he trains and prepares, and he has a clear picture of where we are heading and wants to continue on the journey."

With Betts locked away, the Crows' next target will be to retain defender Jake Lever beyond the end of this season as they aim to collect the club's first flag since going back to back in 1997-98.

"I'll be here for another four years, so with the playing group we have now, I think we can have a chance to win a premiership," Betts said.

"I think our group's got that, so I'm really looked forward to the future."