The utility model discloses an insulation cover assembly. The insulation cover assembly comprises an insulation cover and an operating lever. The insulation cover is an integral body composed of a cover cap and a base plate. A plugboard is arranged below the cover cap, the plugboard is provided with an operating lever insertion hole, and the top end of the plugboard is of a dovetail structure; the operating lever is composed of a lever head and a lever body, the lever head is connected with one end of the lever body, the lever head is of an E-shaped forklike structure, the lever body is composed of multiple lever body parts, and a connector is arranged between every two lever body parts; and the front ends of two insertion levers at a left position and at a right position on the lever head are inclined towards the same side and are not disposed at the same horizontal plane with an intermediate insertion lever; the width between the two insertion levers at the left position and at the right position on the lever head is greater than the width of the plugboard; and the heights of the two insertion levers at the left position and at the right position on the lever head are lower than the height of the intermediate insertion lever. The insulation cover assembly has the advantages of simple structure, convenient carrying, convenient hanging and taking of the insulation cover, stability, safety, small occupied space, convenient folding and unfolding, and facilitated management.