The present invention relates to a safety cover for a syringe needle for a syringe, wherein the syringe comprises a cylinder accommodating a drug solution and a plunger capable of pushing out the drug solution in the cylinder, wherein provided on the neck of the cylinder is a needle cartridge having a protrusion rib formed around a leading end of a coupling cap and having a syringe needle inserted in the other end, wherein the needle cartridge is provided with the safety cover for preventing safety accidents and infections caused by syringe needles being discarded after injection. The safety cover comprises: a coupling tool which has an insertion hole open at one end thereof, has a coupling groove formed around an inner surface thereof, and has a coupling recess formed at the other side thereof, so as to surround the outer surface of the needle cartridge being inserted therein, and to be press-fitted to the protrusion rib; and a cover which includes first and second mounting grooves, which have coupling bumps protruding from one end thereof and allow the coupling cap and the syringe needle of the needle cartridge to be received and sealed therein at the other end thereof, so as to be rotatably press-fitted with the coupling recess of the coupling tool, and a restricting rib in the center of the second mounting groove to allow the syringe needle to be received and restricted in a sealed state. According to the present invention, the safety cover can reduce the manufacturing costs and prevent safety accidents and infections caused by syringe needles.COPYRIGHT KIPO 2020본 발명은 주사기용 주삿바늘 안전커버에 관한 것으로서, 그 기술적 구성은 약물을 수용하는 실린더와 실린더의 약물을 밀어낼 수 있는 플런저로 구비되고, 상기 실린더의 네크에는 결합캡의 선단에 돌출리브가 환설되고 타단에 주삿바늘이 일체로 인서트 성형 된 바늘 카트리지로 구비되며, 상기 바늘 카트리지에는 주사 후 폐기되는 주삿바늘로 인한 안전사고 및 감염을 방지하기 위한 안전커버를 구비한 주사기용 주삿바늘 안전커버에 있어서, 상기 주삿바늘 안전커버는 바늘 카트리지의 외주연에 삽입되어 감싸면서 돌출리브에 끼움 고정될 수 있도록 일측에 삽입구가 개구되고 내면에 결착홈이 환설되며, 타측에는 결합요홈이 형성된 결착구와, 상기 결착구의 결합요홈에는 회동할 수 있는 상태로 끼움결합될 수 있도록 일단에 결합돌기가 돌출형성되고 타단에는 바