The present invention relates to an insulin injection needle having a needle tip protection function comprising a needle body (6), a needle base (2), a main cover (3) and a sheath. external (8). The insulin injection needle is characterized by a trigger tube (5), a front protective housing (4) and a spring (7), which are arranged on the main cover (3)； trigger tube (5) is configured to protect an injection section of the needle body (6) before the needle is used； The front protective housing (4) is configured to protect the injection section of the needle body (6) after the needle is used. Before the needle is used, the trigger tube (5) extends from the main cover (3) and is in a protective state of the needle body, and the front protective shell (4) is located on the main cover (3). . After the needle is used, the trigger tube (5) is located on the main cover (3), and the front protective housing (4) extends from the main cover (3) and is in a protective state of the needle body. . unlocking the trigger tube (5) and the front protective housing (4) is associated with a state of injection needle preparation for injection. During assembly, the trigger tube (5) and front protective housing (4) are unlocked by means of a rear cover (1) and needle base (2), thus improving safety and convenience of use. .a presente invenção refere-se a uma agulha de injeção de insulina com uma função de proteção de ponta de agulha, que compreende um corpo de agulha (6), uma base de agulha (2), uma cobertura principal (3) e um revestimento externo (8). a agulha de injeção de insulina é caracterizada por um tubo de gatilho (5), um invólucro protetor dianteiro (4) e uma mola (7), que são dispostos na cobertura principal (3)； o tubo de gatilho (5) é configurado para proteger uma seção de injeção do corpo da agulha (6) antes de a agulha ser usada； o invólucro protetor dianteiro (4) é configurado para proteger a seção de injeção do corpo da agulha (6) depois de a agulha ser usada. antes de a a
