The invention provides an electrically excited hub motor for an electric vehicle, and belongs to the technical field of electric vehicles. The electrically excited hub motor comprises stator cores, a rotor core, excitation windings, armature windings, stator fixing blocks, a bearing and a shaft, and is characterized in that the motor is of an outer rotor structure, the stator core is fixed on the shaft, and the rotor core is fixedly provided with a hub of the electric vehicle and used for driving the electric vehicle. The rotor core of the electrically excited hub motor is provided with 13 uniformly distributed convex rotor poles. The number of the fan-shaped stator cores is six, wherein each stator core is provided with two convex stator poles, and the stator cores are provided with non-magnetic-conducting stator fixing block therebetween; the outer side of each stator fixing blocks between the stator cores is provided with an armature groove, two ends of the same stator core are provided with an inside excitation groove and an outside excitation groove respectively, each outside excitation groove is embedded with the excitation winding and the armature winding, and each inside excitation groove is embedded with the excitation winding. According to the technology provided by the invention, four-phase inductance and an electromotive force are in sinusoidal variation at any moment, and commutation torque ripples can be effectively reduced.