A disposable self-destructing safety syringe without fluid residues, comprising a syringe tube (1), a push rod (2), a needle mount (3) and a needle (4), the needle (4) being mounted ) in the needle mount (3), the needle mount (3) and the push rod (2) being mounted on the syringe tube (1), a plunger (5) furthermore being arranged slidably coupled to a inner wall of the syringe tube (1) at a front end of the push rod (2), an automatic retraction means (6) being mounted on a front end of a chamber of the push rod (2), comprising the automatic retraction means (6) a retraction rod (61) and a compression spring (62) coupled by a cavity to the retraction rod (61), the retraction rod (61) being provided with the automatic retraction and the needle mount (3) each of a snap-fit member (612； 332), respectively, the two members (612； 332) snap-fit forming an interference fit with each other to connect the needle mount (3) to the automatic retraction means (6)； characterized in that: an elastic rubber washer (63) is mounted on a terminal end of the retraction rod (61) and a position limiting ring (64) is arranged on an inner wall of the push rod (2) , the elastic rubber washer (63) and the position limiting ring (64) forming a fit with interference with each other to fix the automatic retraction means (6) in the front end of the chamber of the rod (2) push； each of the pressure coupling members (612； 332) is provided with fluid passage channels (612； 333) so that the fluid remaining within the syringe tube (1) can still flow through the channels (613； 333) for fluid passage and entering a chamber of the needle mount (3) and the needle (4) when the snap-fit members (612； 332) form an interference fit and engage each other others.Una jeringa de seguridad auto-destruible desechable sin residuos fluidos, que comprende un tubo (1) de jeringa, una varilla (2) de empuje, una montura (3) de aguja y una aguja (4), estando montada la aguja (4) en la montura (3) de aguja, estando montadas
