According to police, the 41-year-old man was walking on the platform around 10:40 p.m. at the station in the 1100-block of S. State Street, when he fell between train cars.
The man's foot got stuck and he was dragged a few hundred feet when the train started moving, police said.
The victim suffered lacerations and blunt force trauma and was taken to Northwestern Memorial Hospital, where he was pronounced dead, police and fire officials said.
The Cook County medical examiner's office hasn't released further details about the victim at this time.
Red Line trains were rerouted to elevated tracks between the Fullerton and Cermak-Chinatown stations for several hours, according to CTA service alerts.
Normal subway service resumed by 3:22 a.m. Sunday.
Police said the man may have been intoxicated during the incident.
Area Central detectives are conducting a death investigation.