A surgical thread for plastic surgery which is extremely simple in structure, is safe for human use, effectively removes sagging and wrinkling of skin, and further enables the tensing action to the skin to be maintained for a long period of time, that is, a surgical thread for plastic surgery comprised of a thread shaped member comprised of a thread body, to be implanted in the inside layers of the skin, partially formed in its longitudinal direction with projections for anchoring in the inside skin layers, wherein at least the thread body is comprised of an absorbable thread, and the thread body or the projections are formed with residual film parts which will not be absorbed by the inside skin layers, and a method of imparting tension to the skin using the same.