A vehicle steering control device having plural systems each including an electric motor (36, 37) for driving a steering mechanism for steerable wheels in dependence on the rotational manipulation of a steering handle, each of the systems being provided with the electric motor (36, 37), drive means (55, 57) for driving the electric motor and control means (21, 22) for controlling the drive means in dependence on the rotational manipulation of the steering handle, wherein: the control means (21, 22) of the respective systems include abnormality monitor means for mutually monitoring the abnormalities of the systems to stop an abnormal system; when the respective systems are normal, the control means of the respective systems drivingly control the electric motors of their own systems through the respective drive means to drive the steering mechanism by the cooperation of the respective electric motors; when at least one system is abnormal, the control means of other systems drivingly control the electric motors of their own systems through the respective drive means to drive the steering mechanism by the cooperation of the respective motors, or when at least one system is abnormal, the control means of the remaining system solely drivingly controls the electric motor of its own system through the drive means of its own system to drive the steering mechanism, the electric motors of the respective systems are provided with a rotor common thereto, and a stator for the electric motors of the plural systems is arranged around the rotor, and the rotor is constituted by a motor shaft which is connected by a ball screw mechanism (49, 50, 51) to a shaft, the opposite ends thereof being coupled to the steerable wheels through tie rods, respectively, and the stator is provided with a plurality of poles common to the motors and windings (41, 42) of the electric motors for the different systems are respectively wound around the common poles. the control means (21, 22) of the respective systems include abnormality monitor means for mutually monitoring the abnormalities of the systems to stop an abnormal system; when the respective systems are normal, the control means of the respective systems drivingly control the electric motors of their own systems through the respective drive means to drive the steering mechanism by the cooperation of the respective electric motors; when at least one system is abnormal, the control means of other systems drivingly control the electric motors of their own systems through the respective drive means to drive the steering mechanism by the cooperation of the respective motors, or when at least one system is abnormal, the control means of the remaining system solely drivingly controls the electric motor of its own system through the drive means of its own system to drive the steering mechanism, the electric motors of the respective systems are provided with a rotor common thereto, and a stator for the electric motors of the plural systems is arranged around the rotor, and the rotor is constituted by a motor shaft which is connected by a ball screw mechanism (49, 50, 51) to a shaft, the opposite ends thereof being coupled to the steerable wheels through tie rods, respectively, and the stator is provided with a plurality of poles common to the motors and windings (41, 42) of the electric motors for the different systems are respectively wound around the common poles.