Disclosed is a vacuum circuit breaker. A rotation link provided between a rotation shaft which transfers a rotation force of a driving force, and a moveable link which performs a linear motion by a rotation force of the rotation shaft is configured to receive a tensile force to be pulled to a direction of the rotation shaft when a driving unit performs a closing operation. This may prevent the moveable link from being buckled during a closing operation, and thus prevent lowering of the reliability due to deformation of sliding levers.