The invention relates to the technical field of medical treatment instruments, and specifically discloses an accidental stabbing-prevention insulin pen needle. The accidental stabbing-prevention insulin pen needle at least comprises a needle seat, a needle body, a seat sleeve, a protecting cover, a triggering seat and an elastic component, wherein the elastic component is located between the needle seat and the triggering seat. According to the accidental stabbing-prevention insulin pen needle, the protecting cover completely covers the front end of the needle body in an original state and a triggering state, so that the needle head is not exposed in the original state and the triggering state in use and has no possibility of accidentally injuring a user; furthermore, the triggering seat is located in the protecting cover, and a triggering structure is completely hidden in the triggering seat, so that the situation that a protecting structure of the insulin pen needle is triggered dueto accidental touching of a triggering structure can be effectively prevented; and the needle seat, the triggering seat, the protecting cover and the seat sleeve are combined to form an invisible triggering manner, so that the accidental stabbing-prevention insulin pen needle has the technical advantages that accessories are simplified, the structure is simple, the conception is skillful, and thestructural safety is good.