A vehicle electric braking device comprising a wheel brake which is connected to a power source mounted on a vehicle and performs braking operation of a brake mechanism of wheels (41a,41b,41c,41d) of the vehicle, wherein the wheel brake includes: a motor which has two sets of independent coil windings, a first coil winding and a second coil winding, and drives a braking mechanism of the wheels (41a, 41b, 41c, 41d) of the vehicle; a first control unit which is connected to the first coil winding of the motor and controls the motor; and a second control unit which is connected to the second coil winding of the motor and controls the motor, and wherein the first control unit includes: the first inverter circuit which supplies a current to the first coil winding of the motor; and a first control circuit section which is mounted with a first output circuit that outputs a control signal which is for driving the motor and a first central processing unit which calculates a control amount of the motor and outputs a control signal to the first output circuit, and a first power source relay circuit that interrupts the current supplied to the first coil winding of the motor, and wherein the second control unit includes: a second inverter circuit which supplies a current to the second coil winding of the motor; and a second control circuit section which is mounted with a second output circuit that outputs a control signal which is for driving the motor and a second central processing unit which calculates a control amount of the motor and outputs a control signal to the second output circuit, and a second power source relay circuit that interrupts the current supplied to the second coil winding of the motor, and wherein the wheel brake is provided on at least any one of the wheels (41a, 41b, 41c, 41d) of the vehicle, and characterized in that the power source is constituted of a first power source, a second power source, and a third power source; the first power source is connected to the first control unit of the wheel brake; the second power source is connected to the second control unit of the wheel brake; the third power source is connected to the first control unit and the second control unit of the wheel brake; a third power source relay circuit is arranged between the third power source and the first inverter circuit; and a fourth power source relay circuit is arranged between the third power source and the second inverter circuit. a motor which has two sets of independent coil windings, a first coil winding and a second coil winding, and drives a braking mechanism of the wheels (41a, 41b, 41c, 41d) of the vehicle; a first control unit which is connected to the first coil winding of the motor and controls the motor; and a second control unit which is connected to the second coil winding of the motor and controls the motor, and wherein the first control unit includes: the first inverter circuit which supplies a current to the first coil winding of the motor; and a first control circuit section which is mounted with a first output circuit that outputs a control signal which is for driving the motor and a first central processing unit which calculates a control amount of the motor and outputs a control signal to the first output circuit, and a first power source relay circuit that interrupts the current supplied to the first coil winding of the motor, and wherein the second control unit includes: a second inverter circuit which supplies a current to the second coil winding of the motor; and a second control circuit section which is mounted with a second output circuit that outputs a control signal which is for driving the motor and a second central processing unit which calculates a control amount of the motor and outputs a control signal to the second output circuit, and a second power source relay circuit that interrupts the current supplied to the second coil winding of the motor, and wherein the wheel brake is provided on at least any one of the wheels (41a, 41b, 41c, 41d) of the vehicle, and characterized in that the power source is constituted of a first power source, a second power source, and a third power source; the first power source is connected to the first control unit of the wheel brake; the second power source is connected to the second control unit of the wheel brake; the third power source is connected to the first control unit and the second control unit of the wheel brake; a third power source relay circuit is arranged between the third power source and the first inverter circuit; and a fourth power source relay circuit is arranged between the third power source and the second inverter circuit.