An integrated electric power steering apparatus having an electric motor that generates assist torque corresponding to steering torque produced by a vehicle driver and a control unit that controls the electric motor, the electric motor and the control unit being integrally fixed to each other, wherein the control unit is configured as a module comprising: an inverter circuit (3a, 3b) including two or more switching devices (31U, 32U, 34U, 34V, 34W) that each supply an electric current to the electric motor; a CPU (10, CPU1, CPU2) that outputs command signals to the inverter circuit (3a,3b); a wiring board on which at least the inverter circuit (3a, 3b) and the CPU (10, cpu1, cpu2) are mounted; a housing that contains the wiring board; and respective connectors (15, 38) that are provided on the housing and connect a power source apparatus and a sensor for detecting the operation state of the vehicle, which are provided outside the control unit, with the control unit, wherein the control unit configured as the module is integrally fixed to the electric motor in the axle direction of the electric motor, and wherein the wiring board is contained in the housing in such a way that the surface thereof is perpendicular to the axle direction, wherein there is provided a conductive spring member disposed between the winding terminal of the electric motor and the wiring board, and wherein one end of the conductive spring member abuts against the winding terminal so as to be electrically connected with the winding terminal and the other end thereof abuts against the wiring board so as to be electrically connected with the wiring board, the spring member is inserted into a pipe-shaped insulating guide member, the pipe-shaped insulating guide member maintaining insulation between the spring member and a frame, positioning the spring member and preventing leaning of the spring member when the spring member is contracted, the frame separating the electric motor from the control unit, and wherein a second bearing is mounted in the frame pivotably supporting an end portion, at the anti-output side, of the output shaft of the electric motor, the frame holding the second bearing, where the output-side end portion in the axis direction of the output shaft of the electric motor is pivotably supported by a first bearing. wherein the control unit is configured as a module comprising: an inverter circuit (3a, 3b) including two or more switching devices (31U, 32U, 34U, 34V, 34W) that each supply an electric current to the electric motor; a CPU (10, CPU1, CPU2) that outputs command signals to the inverter circuit (3a,3b); a wiring board on which at least the inverter circuit (3a, 3b) and the CPU (10, cpu1, cpu2) are mounted; a housing that contains the wiring board; and respective connectors (15, 38) that are provided on the housing and connect a power source apparatus and a sensor for detecting the operation state of the vehicle, which are provided outside the control unit, with the control unit, an inverter circuit (3a, 3b) including two or more switching devices (31U, 32U, 34U, 34V, 34W) that each supply an electric current to the electric motor; a CPU (10, CPU1, CPU2) that outputs command signals to the inverter circuit (3a,3b); a wiring board on which at least the inverter circuit (3a, 3b) and the CPU (10, cpu1, cpu2) are mounted; a housing that contains the wiring board; and respective connectors (15, 38) that are provided on the housing and connect a power source apparatus and a sensor for detecting the operation state of the vehicle, which are provided outside the control unit, with the control unit, wherein the control unit configured as the module is integrally fixed to the electric motor in the axle direction of the electric motor, and wherein the wiring board is contained in the housing in such a way that the surface thereof is perpendicular to the axle direction, wherein there is provided a conductive spring member disposed between the winding terminal of the electric motor and the wiring board, and wherein one end of the conductive spring member abuts against the winding terminal so as to be electrically connected with the winding terminal and the other end thereof abuts against the wiring board so as to be electrically connected with the wiring board, the spring member is inserted into a pipe-shaped insulating guide member, the pipe-shaped insulating guide member maintaining insulation between the spring member and a frame, positioning the spring member and preventing leaning of the spring member when the spring member is contracted, the frame separating the electric motor from the control unit, and wherein a second bearing is mounted in the frame pivotably supporting an end portion, at the anti-output side, of the output shaft of the electric motor, the frame holding the second bearing, where the output-side end portion in the axis direction of the output shaft of the electric motor is pivotably supported by a first bearing.