This creation is a kind of related safty pin skull of what, ties up at least one guiding notch of open end peripheral region setting of a needle cover; When syringe needle is placed in the needle cover, syringe needle can be guided by the guiding notch and enter the needle cover, be avoided that syringe needle insertion is not allowed or the thing of careless manipulation prick into human body occurs, it is ensured that safety when user uses, and meanwhile it is easy to operate, convenient.本創作係有關於一種安全針頭蓋,係在一針頭蓋的開口端周緣處設置至少一導引缺口;當針頭置入該針頭蓋時,可藉由該導引缺口導引針頭進入該針頭蓋,能避免針頭插入不準或操作不慎刺傷人體的事情發生,確保使用者使用時的安全性,同時操作簡單、便利。