Police in Aviemore were alerted to the climber's fall at Aladdin's Couloir, Coire an t-Sneachda, in the Northern Corries at about midday.
Members of Cairngorm MRT and rescue personnel at Glenmore Lodge went to his aid.
The helicopter based at Inverness Airport has airlifted the injured climber to Aberdeen Royal infirmary.
He suffered serious head injuries in the fall.

Michael March banged the weapon on the floor to scare a couple walking past a pub in South Shields in October 2016.
Prosecutors said the offence was carried out during the "killer clown" craze.
The 18-year-old admitted possessing a bladed article at South Tyneside Magistrates' Court.
He was bailed and will be sentenced at Newcastle Crown Court on 6 February.
Paul Anderson, for the Crown, said March - who was 17 at the time - carried out the offence the night before Halloween.
He had waited for the couple outside the Sand Dancer pub and struck the floor with the axe to frighten them.
The woman, who was 22 weeks pregnant, picked up a brick and threw it at him.
Mr Anderson said: "[March] tried to explain it was a prank and ran off in something of a panic.
"He said it was all meant to be a joke that went badly wrong."
March, of Hopedene, Gateshead, was traced by police via CCTV and still had the axe and the mask in his backpack.
Magistrates heard he told police: "I'm sorry, I was not going to hurt her."

Peter Kibisu was lodging with trainee lawyer Elizabeth Nnyanzi and her family at their Harrow home when he attacked the 31-year-old in her bedroom.
The court heard Kibisu, 24, had tried to cover his tracks after the murder in August 2015 but was caught when police found his DNA on the victim.
He was ordered to serve a minimum jail term of 27 years at the Old Bailey.
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Judge Richard Marks QC said Ms Nnyanzi was an "outstanding young woman of immense talent and ability" who had died as a result of "unspeakable wickedness".
Mark Heywood QC told the court Kibisu had been living with the Nnyanzi family for nine months and was regarded as a younger "cousin" by the victim.
On 14 August the 24-year-old returned to the house after a drink and drug-fuelled night out to find Ms Nnyanzi alone, and raped and killed her.
He tried to cover his tracks by sending a text message to the victim while on the way to work later that day.
When he returned he called police to say he had discovered the victim in her room not breathing and the home's rear patio doors ajar.
Kibisu was arrested after a pair of bloodied boxer shorts were found in a bin and a tissue sample Ms Nnyanzi's fingernails matched his DNA.
Det Ch Insp Tim Duffield said the 24-year-old only admitted his guilt "when confronted with a whole raft of evidence".
In a statement Coleen Nnyanzi, the victim's mother, called Kibisu a "wolf in sheep's clothing" who had turned on a family that had "helped him in his hour of need."
Mountain rescue teams and an Inverness Coastguard helicopter crew have rescued a fallen climber.
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A teenager in a clown mask who brandished an axe at a pregnant woman left her so scared she threw a brick at him, a court heard.
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A mechanic who admitted raping and strangling a family friend who he was living with has been jailed for life.