A safe driving management system comprises: a sleep data measurement device; a sleep shortage determination device; and a user identification information input device, wherein the sleep shortage determination device has a sleep shortage determination unit configured to compare sleep data of a case where a driver's sleep is sufficient and acquired data within predetermined duration containing identical data to the sleep data measured within the predetermined duration in the past from when the driver boards a vehicle to start driving, and to determine that the driver is in sleep shortage, when a difference between the sleep data and the acquired data within the predetermined duration is equal or greater than a predetermined difference.
Safe driving management system, sleep shortage determination device, sleep data measurement device, user identification information input device, control method and storage medium