Provided is a safe driving guiding system. The safe driving guiding system includes: a vehicle-drivable space extracting unit configured to extract a vehicle-drivable space by using distance information from a vehicle to an object detected by a distance measuring sensor and a vehicle-drivable space by using object information detected by an object detecting sensor; a dynamic driving space extracting unit configured to extract a dynamic driving space by using movement information of a vehicle detected by a movement detecting sensor; and an accident occurrence predicting unit configured to determine an overlap degree between the vehicle-drivable space and the dynamic driving space, and control initiation of an operation of at least one of a lane departure warning system and a lane keeping assistance system.