Motor for power steering apparatus integrated with a controller and power steering device

There is provided a device for a motor (4) for a compact and economical power steering apparatus integrated with a controller capable of reducing a component for connection and the number of hours of assembly work, and that a power steering device. A driving substrate (31) having a power element (32) is arranged in the side of a speed reduction mechanism inside a casing of a controller, and a control substrate (26) for controlling the drive of the drive substrate (31) is arranged in the side of a motor within the housing (22) and a transformer (41) and a lead frame comprising a connection wiring are arranged between a shaft direction of the motor control substrate (26) and the drive substrate (31), and an input / output terminal of the transformer (41) is electrically connected to the control substrate (36). It is positioned substantially coaxially in the order of an engine (4), the controller (19) and a speed reduction mechanism in the motor shaft direction.