Abstract: The present invention discloses an assembled lamp cover comprising: an unfoldable and curable cover body, an annular upper holder, and a lower holder. Due to the fact that the cover body is unfoldable and curable, and the upper holder and the lower holder can be separated into a plurality of smaller parts, the size of the present invention after being separated becomes extremely small, taking up less space, convenient to package, store and carry in the later period; especially, since the unfoldable and curable cover body, even if collision or extrusion occurs in the carrying process, damage cannot be caused, saving transportation cost.