Provided is an electric motor in which magnets are reduced in size, thus achieving a reduction in cost, and in which a magnetic torque and a reluctance torque are effectively used by adjusting the magnetic flux density to improve the efficiency, thus achieving a reduction in size and cost. The electric motor is equipped with a rotor that includes a cylindrical rotor iron core in which main magnetic poles and auxiliary magnetic poles are alternately disposed in the circumferential direction, a substantially V-shaped magnet insertion hole that is provided for each of the main magnetic poles and whose convex portion faces a rotor center and is centered on a d-axis passing through the rotor center and the circumference-wise center of the main magnetic pole, and two magnets per pole that are embedded in the magnet insertion hole in a substantially V-shaped manner.