To provide a motor controller, which can suppress the dispersion of motor torque, and an electric motive power steering gear.

A motor 30 includes three magnetic sensors 33u, 33v, and 33w, which can detect three-phase magnetic force u, v, and w in three directions that parallel circumferential center lines Lu, Lv, and Lw, at intervals of 120 in electrical angle besides being on the circumferential center lines Lu, Lv, and Lw, in each stator tooth 31b of a stator 31. Since the magnetic force u, v, and w in the three directions are detected, so that they may include rotor magnetic force fa generated by a rotor 32 and stator magnetic force di and qi, by these three magnetic sensors 33u, 33v, and 33w, the motor torque Tq output actually by the motor 30 can be obtained, based on these rotor magnetic force fa and stator magnetic force di and qi. ECU 40 controls the motor 30, by supplying each coil of the stator 31 with a voltage according to this motor torque Tq and a torque command Tq*.