A three-dimensional decorative lighting particularly structured to include a plurality of light emitting tubes enclosing bundles of optical fibers, and parallel arranged in a circle to form a cylindrical decorative lighting that can be transformationally shaped. The light emitting tubes can hang straight under their own weight, and each are fabricated from a transparent protective sleeve, within which a plurality of the plastic optical fibers are disposed. A plurality of light spot generating windows are distributed on a circumferential surface of each of the optical fibers. A manually manipulable binding connector affixes each of the light emitting tubes to a base plate, thereby enabling the light emitting tubes to hang down, and further facilitates manually transforming structural form of the decorative lighting. Ends of the light emitting tubes are prevented from being contaminated, thus avoiding influencing or obstructing light transmission, and realizing an integrated luminescent display.