The invention provides a secondary stamping formation technology based on ultrasonic vibration assistance and structural design of an amplitude-change pole and belongs to the field of metal formationmanufacturing techniques and technologies. By the adoption of the secondary stamping formation technology based on ultrasonic vibration assistance and the structural design of the amplitude-change pole, the interference friction force between a workpiece and a die can be reduced, the internal stress of a part can be better eliminated, and the machining precision and efficiency of a thin-walled part are improved.