Disclosed is an injection needle for plastic surgery prefilled with a surgical thread. The injection needle comprises an insertion portion, an injection portion and a tip portion. The surgical thread has a plurality of directional projections and is accommodated in the injection portion. The ends of the projections are directed opposite to the position of the tip portion.本發明揭示一種以外科手術線預充之用於整形外科的注射針。該注射針包含一插入部分、一注射部分及一尖端部分。該外科手術線具有複數個定向凸起，且容納於該注射部分中。該等凸起之末端的方向與該尖端部分之位置相對。
