The invention discloses a recoverable inferior vena cava support, which belongs to the technical field of medical equipment. The recoverable inferior vena cava support comprises an endovascular stent, a connecting rod, an extension rod and a delivery and recycling sheathing canal which are sequentially connected, wherein the endovascular stent is formed by metal wires and is a self-expanding support, the length of the endovascular stent is 60-80mm, the metal wires are memory alloy, the releasing ends of the metal wires are gathered into a whole, the diameter of the recovering end is greater than that of the releasing end, the endovascular stent is integrally of a pyramid structure, the recovering end is welded with a docking pipe, the other end of the docking pipe is connected with the connecting rod, the other end of the connecting rod is engraved with threads, and one end, corresponding to the connecting rod, of the extension rod is also engraved with threads which are matched with the threads of the connecting rod. While supporting force of the endovascular stent is ensured, the endovascular stent can be recovered in time, so that the condition that since the endovascular stent is placed in the blood vessel for a long time, thrombus is formed, and restenosis occurs due to the fact that blood vessel endothelium hyperplasia is caused can be avoided, and the treatment effect is ensured.