A disposable safety self-destruction insulin needle The present invention discloses a disposable safety self-destruction insulin needle, it comprises an insulin needle body which is provided with a needle base therein and is provided on the center of the upper surface of the substrate of the needle tube thereof with a spring holding post, at least one flexible plate is provided on the inner wall of the upper side of the needle tube and extends diagonally in the inner wall of the inner chamber of the needle tube, a spring fits over the spring holding post and abuts downward against the upper surface of the substrate of the needle tube with one end thereof, and upward against a safety sleeve with the other end thereof, which the safety sleeve is provided on the lower end with a safety clamping base, a self-destruction pressure base fits over the spring and has an upper section located within the chamber of the safety sleeve. The invention uses a sleeve-connected linkage structure and realizes an instant reset of the safety sleeve by means of the spring located in the middle axis so as to ensure that the needle tube is not exposed and preferably realizes a tilting and deflection of the self-destruction pressure base by means of the a plurality of flexible plates unevenly distributed on the inner wall in the needle base so as to finally ensure that the insulin needle cannot be used a second time, in so doing the safety self-destruction operation of the insulin needle is realized.
