Disclosed is a needle base for a pulled-back fixed-needle safe self-destroying syringe, comprising an elastic cushioning upper needle base (1) located at the upper part and a lower needle base (2) located at the lower part, wherein the upper part of the elastic cushioning upper needle base (1) forms a needle tube-assembling column (3) and the lower part of the elastic cushioning upper needle base (1) is cylindrical an annular elastic sealing limiting ring body (4) is formed at the outer wall of the lower part of the elastic cushioning upper needle base (1) an annular elastic cushioning gap (5) is formed between the inner wall of the elastic sealing limiting ring body (4) and the outer part of the lower part of the elastic cushioning upper needle base (1) a connection portion (6) is formed between the lower part of the elastic sealing limiting ring body (4) and the outer wall of the lower part of the elastic cushioning upper needle base (1) and an annular reverse step (7) is formed at the elastic cushioning upper needle base (1) located at the lower part of the connection portion (6). The needle base structure is rational in structure, simple in operation and use, stable in working conditions, and has the characteristics of safety and practicality.La présente invention concerne une base daiguille pour seringue de sécurité à autodestruction à aiguille fixe rétractable, comprenant une base daiguille supérieure à amortissement élastique (1) située au niveau de la partie supérieure et une base daiguille (2) située au niveau de la partie inférieure, la partie supérieure de la base daiguille supérieure à amortissement élastique (1) formant une colonne dassemblage de tube daiguille (3) et la partie inférieure de la base daiguille supérieure à amortissement élastique (1) étant cylindrique un corps annulaire limitant létanchéité élastique (4) est formé au niveau de la paroi extérieure de la partie inférieure de la base daiguille supérieure à amortissement élastique (1) un esp
