Paramedics were in attendance at the incident, which happened at around 3.20pm today.
Diversions were in place while the man was given medical attention.
Police say it was the result of a fall.
A Police Scotland spokesperson said: “At 3.20pm, police received a report that a man was injured in Princes Street, Edinburgh.
“Emergency services attended, and it appears the man had fallen.
"The road has now reopened.”