A stack-type of actuator with PZT-5H as actuate element was presented. To study its driving performance characteristics of piezoelectric ceramic actuators, an electrical analysis model using equivalent structure was built. Based on the electromechanical coupling characteristics of piezoelectric ceramic materials, the numerical calculation on stack-type actuator was carried out with analysis of FEA software, the relationship nearly linear between the input voltage and the output displacement was obtained, which controlled the displacement by commanding both ends of voltage of piezoelectric ceramic. The result shows that the correction project is effective and feasible. The actuators have potential value in application for adaptive ammunition, also can provide the reference for the actuators used to drive the warhead.