The utility model discloses a drop -out shields insulating boot, the problem of the technique of current drop -out shields insulating boot installation bad news consuming time power is solved, the problem of should is solved main technical scheme include that the first cover body and second cover are physically, the upper end of the first cover body is equipped with first extension cover, the upper end of the second cover body is equipped with the second and extends the cover, wherein one side of the first cover body and first extension cover is equipped with the first connection limit of outside extension, what the second cover body and second extended the cover is connected the second connection limit that one side that the limit corresponds was equipped with outside extension with first, first connection limit and second are connected the limit and are passed through the glue bonding and rivet through the rivet, the upper end of the first cover body is equipped with the third connection limit of outside extension, the upper end of the second cover body is equipped with the fourth connection limit of outside extension, third connection limit and fourth connection limit are passed through rivet and are linked to each other, first extension cover is equipped with first connection piece with the first relative one side in limit of being connected, and second extension cover is connected the relative one side in limit with the second and is equipped with the second connection piece.