The utility model discloses a column switch divide -shut brake blocking device, its characterized in that drive torsion bar through the support mounting on the cross arm under the box, the box has the protection network, a side of protection network is connected with the drive torsion bar, the fender rod lower extreme is connected with the drive torsion bar, the upper end of fender rod is established and is not held outside the combined floodgate pole, the combined floodgate pole has the brake lever baffle that is connected with the fender rod, the one end of drive torsion bar is equipped with and drives the perpendicular application of force arm of being connected of torsion bar, the one end of application of force arm is less than the horizontal plane and is connected with the cable, the cable is connected with the one end of pull rod, the other end of pull rod is connected with the base through the pivot, it gets in touch surely to be equipped with bar lock on the base, the other end of application of force arm is connected with the one end of spring, the other end of spring is connected with the spring branch below the drive torsion bar, spring branch is connected with the cross arm, the utility model discloses safe and reliable and convenient operation guarantee that the operating personnel operation is accurate, smooth, save time and safety.