A novel sophisticated stepping linear actuator was proposed based on piezoelectric stack as actuator element. Its working principle was analyzed, and the structure of the stepping linear actuator and control wave voltage were designed. A model of actuator with linear rolling guide was established for reducing the sliding friction between the parts of actuator. A prototype of actuator was made, and its performance was tested. The experimental results show that the actuator has minimum step distance of 0.05 μm and maximum speed of 610 μm/s, it works steadily.