The invention relates to a motor intermediate shaft turning tooling device which is composed of a supporting device and a rotating device. The rotating device is installed on the supporting device. The track of the rotating device is clamped on a deep groove ball bearing 4. The supporting device is a vehicle base which can slide along the track. The vehicle base is composed of a supporting vehicle1, a shaft pin 2, a stop piece 3, the deep groove ball bearing 4 and a setting screw 5. Sliding along the track can be realized, the bearing is installed on the end surface of the vehicle base to reduce the friction force between the rotating device and the supporting device, rolling displacement can be realized between the rotating device and the supporting device and the turning difficulty is reduced; and accidents or affecting the turning accuracy caused by the displacement of the supporting device and the rotating device during the rotation process can be avoided. The workload and the working time can be reduced, the working efficiency can be improved, the accuracy and the convenience of the motor intermediate shaft turning work can be guaranteed and operation is simple and convenient.