Disclosed is a safe insulin needle, comprising a protection sleeve (1), a needle tubing (2), a safety protection sleeve (3), a pressing seat (4), and a needle holder (5), wherein the needle tubing (2) is arranged on the central axis of the needle holder (5)； the pressing seat (4) is sheathed over the upper portion of the needle holder (5)； the safety protection sleeve (3) is sheathed on the needle holder (5) and the pressing seat (4) as a whole； the upper portion of the safety protection sleeve (3) is connected to and cooperates with the pressing seat (4)； the needle tubing (2) protrudes out of the top end of the upper portion of the safety protection sleeve (3)； the lower portion of the safety protection sleeve (3) is connected to and cooperates with the lower portion of the needle holder (5)； the protection sleeve (1) is sheathed on the safety protection sleeve (3) and the needle tubing (2) as a whole； and the lower portion of the protection sleeve (1) is connected to and cooperates with the lower portion of the safety protection sleeve (3). Since the pressing seat (4) is additionally provided, and connection structures between the pressing seat (4) and the safety protection sleeve (3) and between the pressing seat (4) and the needle holder (5) are redesigned, the stability of the safety protection sleeve (3) in an axial plane is improved while achieving self-locking of the safety protection sleeve (3) in a circumferential direction and in an axial direction, such that the stability of the entire structure is ensured, and the safety factor of a product is increased. The entire product is small in terms size, and the components are fitted in a compact manner with a high fitting degree, and can be completely assembled in one step.L'invention concerne une aiguille d'insuline sûre, comprenant un manchon de protection (1), un tube d'aiguille (2), un manchon de protection de sécurité (3), un siège de pression (4) et un support d'aiguille (5), le tube d'aiguille (2) étan
