Ayatollah Khamenei visited the mausoleum of the late Imam Khomeini, south of Tehran, to pay tribute to the late founder of the Islamic Republic.
The Leader also paid homage to Iranian martyrs laid to rest in Behesht-e Zahra Cemetry in southern Tehran.
The Iranian nation toppled the US-backed Pahlavi regime 38 years ago, on February 11, 1979, ending the 2,500 years of monarchic rule in the country.
The Revolution, led by the late Imam Khomeini, established a new political system based on Islamic values and democracy.
Every year Iranians mark the anniversary of their Islamic Revolution from February 1 to 11, known as the Ten-Day Fajr ceremonies. February 1, 1979, was the date when Ayatollah Ruhollah Khomeini returned from exile in Paris to Tehran.