The present invention belongs to an electric transmission device filed, which is suitable for the transmission controlling in the special environment such as the electromotive vehicle filed, the 
food processing, the 
underwater operation, the 
nucleus industry, and the 
aviation field, The present invention consists of a rotor, a winding, a 
stator and an axis, the rotator and the 
stator are distributed along the axial direction. The directions of the rotator pole and the 
stator pole are along the axial direction, and the rotator pole and the stator pole are faced with each other along the axial direction. The 
pole number of the rotator and the stator can adopt the 6 to 4, 8 to 6, 12 to 8, or 4 to 6, 6 to 8, 8 to 12 and other type of the prior SRM proposal. The rotator and the stator adopt the different rotating axis, the rotator and the rotating axis can be completely separated from the stator. Due to the stator and the rotor has the distance along the axial direction, change the 
radial position to the axial direction relation, the radial size is decreased, the radial of the rotator is not limited, only need to form the 
magnetic loop with the stator at the axial direction, the energy transmission manner is changed to the direct axial direction transmission, and beneficial to the heating output of the electromotor, and suitable for using as the electromotor of the 
electric vehicle wheel.