The utility model discloses a cover is shielded in combination of cross arm pole, covering the cover and the right side including a left side and covering the cover, a left side is covered the cover and including one section the flute profile strip body, has been offered square groove or half slot at a tip of the flute profile strip body, is provided with on square groove or half slot trough rim along the upright portion at the perpendicular to flute profile strip body tank bottom back that the trough rim was arranged, is provided with the stiffening rib with the flute profile strip between the tank bottom back that the portion of standing personally experienced sth. Part of the body, the right side shield the cover and shield cover symmetry with a left side, and the right side shield the cover be less than or be greater than a left side shield the cover and can embed in or contain during a left side shields the cover. The utility model discloses a cover is shielded in combination of cross arm pole has a sufficient insulating protecting effect, and the mode of shielding of integral type is the very big process of shielding that has made things convenient for not only, moreover can the omnidirectional clearance and dead angle between cross arm and pole shield and firmly target in place.