The invention discloses a high-performance high-speed vacuum circuit breaker, belonging to the field of vacuum circuit breakers. As that eddy current drive circuit breaker operate, As that control detects an abnormal current, high-resistance shrapnel will bend, thereby pushing up the upper terminal, disconnect the contact head from the lower terminal, so that that circuit is disconnect, the actuating drive mechanism then releases the stiffening spring to cause the rotating secondary lever to start to rotate, As a result, the threaded tube starts to rise rapidly, the rate of rise is related tothe performance of the stiffener spring, As that high pressure is maintain inside the device, a thrust force is generated to accelerate the rapid rise of the insulating tie rod, so as to drive the movable contact to rise, so that the arc can be quickly extinguished and the current can be restrained after the medium-high voltage circuit cuts off the power supply through the excellent insulation property in the vacuum arc extinguishing chamber, when in use, the lower end of the insulation tie rod is fixedly connected with the movable conductor rod through the contact spring, and the shielding plate effectively prevents the high-voltage electricity from overflowing when the movable conductor rod is in operation, thereby ensuring the operation safety.