A steering control device comprising: a steering reaction force actuator for imparting steering reaction force to a steering unit (1, 6, 7); steering reaction force torque offset unit for computing a steering reaction force control amount in which a steering reaction force increases in a direction in which a lateral position of a host vehicle moves away from a white line in commensurate proximity to the white line; steering reaction force control means for controlling the steering reaction force actuator based on the steering reaction force control amount; a turning actuator for imparting turning torque to a turning part mechanically separated from the steering unit; lateral position based reaction force calculation unit for computing a turning control amount in which a turning amount increases in the direction in which the lateral position of the host vehicle moves away from the white line in commensurate proximity to the white line; turning control means for controlling the turning actuator based on the turning control amount; reaction force suppression processing means for computing a reaction force suppression processing offset amount for reducing the steering reaction force control amount when a state in which the steering reaction force control amount has been at a predetermined threshold value or higher for a predetermined length of time, and for processing reaction force suppression for controlling the steering reaction force actuator based on the reaction force suppression processing offset amount in lieu of the steering reaction force control amount; and reaction force holding unit for holding the turning control amount at a value occurring at a starting time point of the reaction force suppression processing when the reaction force suppression processing has started. a steering reaction force actuator for imparting steering reaction force to a steering unit (1, 6, 7); steering reaction force torque offset unit for computing a steering reaction force control amount in which a steering reaction force increases in a direction in which a lateral position of a host vehicle moves away from a white line in commensurate proximity to the white line; steering reaction force control means for controlling the steering reaction force actuator based on the steering reaction force control amount; a turning actuator for imparting turning torque to a turning part mechanically separated from the steering unit; lateral position based reaction force calculation unit for computing a turning control amount in which a turning amount increases in the direction in which the lateral position of the host vehicle moves away from the white line in commensurate proximity to the white line; turning control means for controlling the turning actuator based on the turning control amount; reaction force suppression processing means for computing a reaction force suppression processing offset amount for reducing the steering reaction force control amount when a state in which the steering reaction force control amount has been at a predetermined threshold value or higher for a predetermined length of time, and for processing reaction force suppression for controlling the steering reaction force actuator based on the reaction force suppression processing offset amount in lieu of the steering reaction force control amount; and reaction force holding unit for holding the turning control amount at a value occurring at a starting time point of the reaction force suppression processing when the reaction force suppression processing has started.