A steering control device comprising: a steer-by-wire system configured to control an actuator that detects displacement of a steering angle when a steering wheel is steered and to operate a turning mechanism configured to turn a turning wheel separated from the steering wheel based on a detection result; a yaw angle detector configured to detect a yaw angle of a vehicle; a steering angle detector configured to detect the steering angle of the steering wheel; a turning state detector configured to detect a turning state of the vehicle; and a traveling state detector configured to detect a braking state or an acceleration state of the vehicle, characterized by a yaw angle controller configured to control the actuator to suppress a yaw angle deviation before and after braking or acceleration in a state where the steering wheel maintains steering, when the turning state of the vehicle is detected by the turning state detector and when the braking state or the acceleration state of the vehicle is detected by the traveling state detector, wherein the yaw angle controller selects, when the turning state of the vehicle is detected by the turning state detector and when the braking state of the vehicle is detected by a braking state detector, a steering angle characteristic line where a yaw angle at the same vehicle velocity as the vehicle velocity after braking is smaller than the yaw angle after braking based on the vehicle velocity after braking and the yaw angle after braking after the braking state is detected with reference to a target value calculation map having a plurality of steering angle characteristic lines where the steering angle is used as a parameter and indicating the relationship between the vehicle velocity and the yaw angle, calculates a target turning amount from a deviation between a steering angle and a steering angle after braking of the selected steering angle characteristic line, and controls the actuator so that the turning amount of the turning mechanism becomes the target turning amount. a steer-by-wire system configured to control an actuator that detects displacement of a steering angle when a steering wheel is steered and to operate a turning mechanism configured to turn a turning wheel separated from the steering wheel based on a detection result; a yaw angle detector configured to detect a yaw angle of a vehicle; a steering angle detector configured to detect the steering angle of the steering wheel; a turning state detector configured to detect a turning state of the vehicle; and a traveling state detector configured to detect a braking state or an acceleration state of the vehicle, characterized by a yaw angle controller configured to control the actuator to suppress a yaw angle deviation before and after braking or acceleration in a state where the steering wheel maintains steering, when the turning state of the vehicle is detected by the turning state detector and when the braking state or the acceleration state of the vehicle is detected by the traveling state detector, wherein the yaw angle controller selects, when the turning state of the vehicle is detected by the turning state detector and when the braking state of the vehicle is detected by a braking state detector, a steering angle characteristic line where a yaw angle at the same vehicle velocity as the vehicle velocity after braking is smaller than the yaw angle after braking based on the vehicle velocity after braking and the yaw angle after braking after the braking state is detected with reference to a target value calculation map having a plurality of steering angle characteristic lines where the steering angle is used as a parameter and indicating the relationship between the vehicle velocity and the yaw angle, calculates a target turning amount from a deviation between a steering angle and a steering angle after braking of the selected steering angle characteristic line, and controls the actuator so that the turning amount of the turning mechanism becomes the target turning amount.