Child double-open protective door fence capable of being opened and closed synchronously

The utility model discloses a child double-open protective door fence capable of being opened and closed synchronously. The device comprises a portal and left and right door fences, the door frame comprises a threshold stop, a left door stop and a right door stop. Upper fixing bases are correspondingly fixed to the upper portions of the left door stop and the right door stop. An upper door shaft and a lower door shaft are correspondingly fixed on the left and right door railings; the upper ends of the left and right door fences are correspondingly hinged to the upper fixing seats of the left and right door stops through upper door shafts, the lower ends of the left and right door fences are correspondingly hinged to the threshold stop through lower door shafts, left and right racks which are connected into a whole and reversely distributed are arranged in the threshold stop, and gear shafts meshed with the left and right racks are correspondingly arranged on the lower door shafts of the left and right door fe