The invention relates to the technical field of electric power equipment maintenance and more particularly relates to a knife gate hard combined shield cover. The knife gate hard combined shield cover comprises a middle baffle plate which comprises a horizontal plate and a vertical plate which is vertically connected under the horizontal plate. A first clamp groove with an opening is formed in the horizontal plate. Both the first clamp groove and the vertical plate extend along a horizontal Y axis direction on the horizontal plate. The first clamp is adapted to the clamp part of an insulator which is between a cross arm and a knife gate in a vertical direction. The horizontal plate is clamped to the insulator through the first clamp groove so as to isolate the cross arm and the knife gate. Correspondingly, the vertical plate is between a phase and an adjacent in the horizontal X axis direction which is perpendicular to the Y axis direction so as to separate the knife gates of two adjacent phases. The invention provides the safe knife gate hard combined shield cover with a simple structure, rapid construction and convenient disassembly.