Insulin needle

The utility model discloses an insulin needle head which comprises an insulin needle head body and a sleeve, the sleeve is connected to the position of anti-skid lines arranged on the insulin needle head body in a sleeved mode, a connecting portion is arranged between the sleeve and the anti-skid lines on the insulin needle head body, and a telescopic sliding portion is arranged on the outer side wall of the sleeve. The sleeve can be conveniently installed on the insulin needle through the arranged connecting part, then the insulin needle is wrapped, the needle is prevented from being exposed, the sleeve can stretch out and draw back on the sleeve through the arranged sliding part, and therefore the insulin needle is hidden all the time when insulin is injected; in the insulin injection process, the sliding part makes contact with the skin of a patient, the insulin needle head can be driven to penetrate through the skin of the patient from the through hole for injection by pushing the insulin pen, through the