A highly retractable intravascular stent delivery system including a tube assembly and a rotation driving assembly, wherein the tube assembly extends into the rotation driving assembly and is driven by the rotation driving assembly, wherein: the tube assembly includes an outer tube, an intermediate tube disposed within the outer tube, and an inner tube disposed within the intermediate tube, wherein the inner tube includes a hollow channel through which guide wires pass; the delivery system is introduced to the target treatment area by the guide wires, and the outer tube includes an intravascular stent loading area within which the intravascular stent is placed; and a stent retaining block is abutted against the proximal end of the intravascular stent, the stent retaining block is fixed on the distal end of the intermediate tube; the distal end of the inner tube passes through the inner cavity of the stent retaining block and the intravascular stent and extends out of the distal surface of the outer tube; the rotation driving assembly includes a housing, an outer screw and an intermediate screw disposed within the housing and a driving member for driving the outer screw and the intermediate screw to rotate, wherein outer threads are provided on the outer surface of the outer screw that is threadably connected to an outer screw jaw, and the outer screw jaw is non-movably connected to the outer tube through a connection tube for outer tube; outer threads are provided on the outer surface of the intermediate screw that is threadably connected to an intermediate screw jaw, and the intermediate screw jaw is non-movably connected to the intermediate tube through a connection tube for intermediate tube; the outer screw and the intermediate screw are respectively provided with left hand threads and right hand threads that are opposite to each other; the driving member drives the outer screw and the intermediate screw to rotate in opposite direction, and the rotation of the outer screw drives the outer screw jaw to move to the proximal end; the rotation of the intermediate screw drives the intermediate screw jaw to move to the distal end, such that the intermediate tube drives the stent retaining block and the intravascular stent to move to the distal end; and the outer screw and the intermediate screw are configured to be parallel with each other. the tube assembly includes an outer tube, an intermediate tube disposed within the outer tube, and an inner tube disposed within the intermediate tube, wherein the inner tube includes a hollow channel through which guide wires pass; the delivery system is introduced to the target treatment area by the guide wires, and the outer tube includes an intravascular stent loading area within which the intravascular stent is placed; and a stent retaining block is abutted against the proximal end of the intravascular stent, the stent retaining block is fixed on the distal end of the intermediate tube; the distal end of the inner tube passes through the inner cavity of the stent retaining block and the intravascular stent and extends out of the distal surface of the outer tube; the rotation driving assembly includes a housing, an outer screw and an intermediate screw disposed within the housing and a driving member for driving the outer screw and the intermediate screw to rotate, wherein outer threads are provided on the outer surface of the outer screw that is threadably connected to an outer screw jaw, and the outer screw jaw is non-movably connected to the outer tube through a connection tube for outer tube; outer threads are provided on the outer surface of the intermediate screw that is threadably connected to an intermediate screw jaw, and the intermediate screw jaw is non-movably connected to the intermediate tube through a connection tube for intermediate tube; the outer screw and the intermediate screw are respectively provided with left hand threads and right hand threads that are opposite to each other; the driving member drives the outer screw and the intermediate screw to rotate in opposite direction, and the rotation of the outer screw drives the outer screw jaw to move to the proximal end; the rotation of the intermediate screw drives the intermediate screw jaw to move to the distal end, such that the intermediate tube drives the stent retaining block and the intravascular stent to move to the distal end; and the outer screw and the intermediate screw are configured to be parallel with each other.