The utility model provides a spacing high -voltage switch of limited corner, including the turning arm box, with install the driving motor that the crank arm shaft transmission in the turning arm boxis connected, crank arm shaft and driving motor's junction is provided with block formula corner stop device. The utility model has the advantages of because crank arm shaft and driving motor's junction is provided with block formula corner stop device, consequently, when the drive motor drive crank arm shaft action realizes the divide -shut brake, it is spacing that block formula corner stop device can carry out the block to their turned angle, guarantee that it can only be at limited corner internal motion, avoid owing to overshoot, the maloperation, the striking that overshoots that electromagnetic interference etc. Arouse damages the inside explosion chamber of high -voltage switch, high -voltage switch's safety has been ensured, it is stable, the reliability service, the electric wirenetting potential safety hazard has been eliminated.