The victim, 37, from mainland China and identified only by the surname Leung, was said to be part of a group of about a dozen friends who started out on a hike on the city landmark in Kowloon at about 10am.
Police said he was reported to have lost his footing as he climbed a rock face and fell about 25 metres (82 feet)
Hiking accidents in Hong Kong have become more common after many of the most scenic destinations have gone viral on mainland social media.
Two mainland tourists were found floating unconscious in the waters off a cape in Shek O in January after going for a hike with family members.
Marine police pulled a woman, 57, and a man, 55, from the water but the pair, a brother and sister, were later pronounced dead by doctors.
A 61-year-old, another brother, injured his foot but was able to return to shore on his own.
Lion Rock is one…
