Warning device for vehicle

In a warning device for a vehicle, a basic target current value setting unit (41) sets a basic target current value (Io*) based on a steering torque (T) and a vehicle speed (V). When a lane deviation determining unit (42) determines that there is a high possibility that a vehicle will deviate from a lane, a warning vibration wave generator (43) generates a warning vibration wave (Ie) containing a plurality of frequency components. A target current value (is) is computed by adding the warning vibration wave (Ie) to the basic target current value (Io*). A motor current (I) to be applied to an electric motor (18) is controlled so as to approach the target current value (I*).