The man died after falling onto the tracks at the Porte de Versailles Metro station on Line 12 at about 5.30pm on Thursday.
According to French newspaper Le Parisien the man was with several friends, all of whom had been drinking, and were laughing and pushing each other on the station platform.
He fell on to the tracks and the driver of an oncoming Metro was unable to stop in time.
Police and firefighters were called, but the man was pronounced dead at the scene.
An investigation has begun and his friends, who had to be hospitalised with shock, face a possible charge of manslaughter.
— Ligne 12 RATP (@Ligne12_RATP) February 28, 2020
Traffic on Line 12 was halted until 1am while investigations took place. The Metro driver has been receiving psychological support.