To provide a protector-attached medical needle in which a needle body and a protector that are formed separately can be easily assembled. A protector-attached medical needle (1) includes a needle body (3) comprising a needle (2) and a hub (7), a protector (4) capable of accommodating the needle tube (2), a first engaging means for engaging the needle body (3) to the protector (4) in a releasable manner, and a second engaging means for engaging the needle body (3) to the protector (4) in an unreleasable manner. The first engaging means comprises an arm part (75) provided at the side of the hub (7), a hook part (77), and an engagement part (44) provided at the side of the protector (4). The second engaging means comprises protruding parts (79, 80) provided at the tip of the hub (7), and an engaging member (47) provided on the rear end side of the protector (4). The protector (4) includes a first groove part (45) provided on the inner circumferential surface thereof so that the protruding parts (79, 80) can pass therethrough, and a second groove part (46) provided in the direction orthogonal to the groove part (45).提供可以容易組合分開成型的針本體和保護器的具保護器的醫療用針。具保護器的醫療用針(1),其係具備:針本體(3),其係由針管(2)、以及針座(7)所成;保護器(4),其係可收納針管(2);第1卡止手段,其係將針本體(3)可解除地卡止於保護器(4);以及第2卡止手段,其係將針本體(3)無法解除地卡止於保護器(4)。第1卡止手段是由設置在針座(7)的側部的腕部(75)、鉤部(77)、以及設置在保護器(4)的側部的卡止部(44)所成。第2卡止手段是由設置在針座(7)的先端部的凸出部(79、80);以及設置在保護器(4)的後端側的卡合構件(47)所成。保護器(4),其係具備:第1槽部(45),其係在內周面設置成凸出部(79、80)可通過;以及第2槽部(46),其係設置在與槽部(45)正交的方向上。1‧‧‧具保護器的醫療用針2‧‧‧針管3‧‧‧針本體4‧‧‧保護器5‧‧‧翼狀構件6‧‧‧可撓性管7‧‧‧針座
