Abstract: The closing bounce and opening transient characteristics of vacuum circuit breakers directly affect equipment reliability. To suppress closing bounce, reduce the risk of opening re-ignition, and optimize the transient operating state, this study transformed the ZN63A(VS1)-12 vacuum circuit breaker into a double-ended drive structure, built a counteracting energy-dissipation model for closing bounce suppression, established segmented dynamic equations for buffer spring parameter selection, and carried out repeated tests on an experimental platform with specified actuator type, instrument accuracy, and environmental conditions. The results show that the collaboratively optimized double-ended drive has a closing bounce amplitude of (0.47 ± 0.03) mm, a bounce time of (1.7 ± 0.1) ms, an opening separation velocity of (0.34 ± 0.01) m/s, and an end velocity of (0.19 ± 0.01) m/s. The position error and symmetry error remain low, while the peak acceleration and jerk integral are lower than those of the single-ended drive and the unoptimized double-ended scheme. The small dispersion of repeated test data indicates that the proposed method can balance closing bounce suppression and opening re-ignition prevention, thereby stabilizing the operating state of vacuum circuit breakers.