Disclosed is a safety syringe set, including: an adapter base having a socket hole and two fins a pin ring having a needle tip and a joint-tube section that penetrates the socket hole of the adapter base and sleeves in connection with an terminal end of a medicine liquid conduit a clamping lower seat assembled below the connection among the pin ring, adapter base and the medicine liquid conduit three sets of clamping upper seats corresponding to the set of clamping lower seat and arranged above the connection among the pin ring, adapter base and the medicine liquid conduit and a moveable sheath sleevedly installed outside of the adapter base and clamped between the clamping upper seats and the clamping lower seat. By pushing outward the sheath, the safety syringe set is able to keep the used needle tip insolated, thereby preventing nursing staff from needlestick injuries that lead to infections or diseases when subsequently touching the syringe set. Additionally, the sheath cannot be retracted once an injection has been carried out and would be pushed outward into a precise position, therefore, the syringe is not allowed for a second usage afterwards.一種安全針組,包括:一具有插接孔及二翼片之銜接座。一具有針頭及接管部之固針環,該接管部穿貫銜接座之插接孔與藥液導管之端部套固連結。一組設於固針環、銜接座及藥液導管連結處下方之夾掣下座。一對應夾掣下座3組設於固針環、銜接座及藥液導管連結處上方之夾掣上座。一套組於固針環外部並夾設於夾掣上座及夾掣下座中間之可移動護套。藉由護套向外推移將使用過之針頭與外界產生阻隔,進而防止後續再接觸該針組之相關人員遭到針頭刺傷而感染疾病;另外,護套在針頭注射使用後即向外推移並且定位確實,該護套再無縮回之可能性,可杜絕使用過之針頭遭人二次使用。12‧‧‧翼片2‧‧‧固針環21‧‧‧針頭23‧‧‧藥液導管3‧‧‧夾掣下座33‧‧‧定位部331‧‧‧長穿孔34‧‧‧上卡合部4‧‧‧夾掣上座44‧‧‧定位板45‧‧‧凹部46‧‧‧下卡合部49‧‧‧前段5‧‧‧護套51‧‧‧容置空間52‧‧‧推力作用部
