Witnesses told police the 73-year-old was skiing when he struck a pole on the edge of a ski run about 12.30pm at Thredbo alpine resort.
"Other skiers commenced CPR prior to the arrival of medical staff, however he died at the scene," NSW Police said in a statement.
"Officers from Monaro Police District have established a crime scene and will conduct inquiries into the incident."
A report is being prepared for the coroner.
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