Provided is a medical needle with a protector, the medical needle configured so that the needle body and the protector, which are individually formed, can be easily mounted together. A medical needle (1) with a protector is provided with: a hub (3) for supporting a needle pipe (2)； the protector (4) capable of accommodating the needle pipe (2)； first engagement means (42a, 42b, 73) for engaging the hub (3) with the protector (4) so that the hub (3) can be disengaged； and second engagement means (43, 44, 74, 75) for engaging the hub (3) with the protector (4) so that the hub (3) cannot be disengaged. The front end of the hub (3) is provided with: a pair of first protrusions (74) arranged in the top-bottom direction； and second protrusions (75) arranged in the left-right direction. The rear end of the protector (4) is provided with: a pair of protrusions (43) arranged in the left-right direction； and a pair of side wall sections (44) arranged in the top-bottom direction. The distance between the side walls (44) is greater than or equal to the width of the protrusions (74, 75) and less than or equal to the height thereof.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：針座(3)，其係支撐針管(2)；保護器(4)，其係可收納針管(2)；第1卡止手段(42a、42b、73)，其係將針座(3)可解除地卡止於保護器(4)；以及第2卡止手段(43、44、74、75)，其係將針座(3)無法解除地卡止於保護器(4)。在針座(3)的先端部，在上下方向上設置一對的第1凸出部(74)，在左右方向上設置第2凸出部(75)。在保護器(4)的後端部，在左右方向上設置一對的凸片(43)，在上下方向上設置一對的側壁部(44)。側壁部44的間隔是形成為凸出部(74、75)的寬度以上，高度以下。
