To achieve size reduction in a leading portion of an AC servo motor coated wiring material and a motor body, and stabilize quality to insulation.

The motor includes: a circuit board (1) mounted on the outside of a motor frame (4) and connecting an armature winding with a motor cable (2); and a cable clamp (3) that surrounds the circuit board (1), fixes the motor cable (2) on the motor, and serves as a protection cover for insulating electricity. The circuit board (1) includes: a plurality of through-holes (5) through which respective phases coated wiring materials (6) are inserted in the motor cable (2); and a cable clamp protruding portion (7) that has a slit-shape notch portion provided among the plurality of through-holes (5) and is disposed at the cable clamp (3) and inserted along the slit-shaped notch portion provided among the plurality of through-holes (5).