The invention relates to a five-phase 5N/4N-pole armature and excitation winding fault-tolerant electrically excited doubly salient motor, which is characterized in that stator poles of a stator are alternately wound with an armature winding and an excitation winding, each armature winding and excitation winding are provided with a stator pole without a winding therebetween, and thus the armaturewinding and the excitation winding are not overlapped. Compared with the prior art, the stator poles are provided with the armature windings and the excitation windings, the armature windings and theexcitation windings are uniformly wound on the stator poles, and each armature winding and excitation winding are provided with a stator pole without a winding, so that the mutual inductance between the armature winding and the excitation winding can be reduced, the phases are physically isolated due to the spacing of the stator pole without a winding, the inter-turn short circuit between the phases is avoided, and the fault tolerance of the motor is increased. The excitation windings are uniformly distributed, and the distance between the excitation windings and each phase of the armature windings is the same, so that the armature windings are uniform in output, a symmetrical phase magnetic circuit is generated, and the electromagnetic force is balanced.