The present invention relates to a method for preventing needle sticking of a syringe. A method for preventing needle sticking of a syringe comprises: a rail member fixing step (S1 step) for fixing a rail member (70) in a cylinder pipe shape on an end side outer circumference in a syringe needle (30) direction of a cylinder (10) a rail groove forming step (S2 step) for forming a rail groove (70a) on one side outer circumference of the rail member (70) and a facing outer circumference along a longitudinal direction a sliding member forming step (S3 step) for forming a sliding member (80) which has a sliding projection (80b) on an one side inner side in a cylinder pipe shape and a facing inner side along a longitudinal direction a sliding projection inserting step (S4 step) for inserting a sliding projection (80b) in the rail groove (70a) and a syringe needle covering step (S5 step) for protecting a syringe needle by withdrawing the sliding member (80), and covering the syringe needle with the sliding member (80) as a safety cap. Concern of needle sticking does not occur by sliding and withdrawing a syringe security cap from an area opposed to a needle front end, and covering a needle with the cap without reusing a needle protecting cap. A needle is efficiently and safely covered to prevent infection of pathogens according to secondary infection by needle sticking after disuse as well as in use. Furthermore, since a structure is simple and costs for manufacturing a product is reduced, the invention has excellent economical efficiency.COPYRIGHT KIPO 2018본 발명은 주사기의 바늘찔림 방지방법에 관한 것으로, 주사기의 바늘찔림 방지방법에 있어서 상기 실린더(10)의 주사바늘(30) 방향 단부측 외주연에 원통 관체상으로 레일부재(70)를 고정하는 레일부재 고정단계(S1단계)와 상기 레일부재(70)의 일측 외주연과 그 대향하는 외주연에 길이방향을 따라 레일홈(70a)을 형성하는 레일홈 형성단계(S2단계)와 원통 관체상 일측 내면과 대향하는 내면에 길이방향을 따라 슬라이딩 돌기(80b)를 구비하는 슬라이딩부재(80)를 형성하는 슬라이딩부재 형성단계(S3단계)와 상기 레일홈(70a)에 슬라이딩 돌기(80b)를 삽입하는 슬라이딩 돌기 삽입단계(S4단계) 및 상기 슬라이딩부재(80)를 인출시켜 주사기 안전캡으로서 주사바늘(30)을 씌워서 보호하는 주사바늘 씌움단계(S5단계)로 이루어져 바늘 보호캡을 재 사용하지