To provide a retainer for a wing-shaped syringe needle which enables a user to easily puncture the needle by securely retaining the extension line of the wing-shaped syringe needle and is convenient for carrying.

The retainer for a wing-shaped syringe needle has structure in which a nipping part is in an almost cylindrical shape with a forked tip end part having an outer shape with a taper part which nips the wing-shaped part by entering the taper part of the cylindrical retainer body. The retainer comprises a cap part and the retainer body. When the retainer is unused, contamination of the nipping part is prevented by fitting the cap to the nipping part side of the retainer body, and, when used, the retainer is formed into easily usable length by shifting the cap to the anti-nipping part of the retainer body. Further, blood infection etc., can be prevented by equipping a disposable cover on the part nipping the wing part.