A bobbin holder (2) for tying thread (F) for making fishing flies comprises, essentially, means (21) for holding a bobbin (3) of tying thread (F) and a thread (F) guide tube (20) through which the thread (F) from the said bobbin (3) is threaded. The bobbin holder (2) also comprises, spaced radially in relation to the thread (F) guide tube (20) and apart from each (4; 4′) other (4′; 4), at least two retaining hooks (4; 4′) around which a tying thread (F) can be partially wound. The bobbin holder is used for fastening dubbing onto the fish hook of a fishing fly.