A blood conduit with a stent, said blood conduit being provided with a flexible conduit body and an expandable stent structure body. The conduit body is provided with a first opening end only for blood to flow in and a second opening end only for blood to flow out, the stent structure body consists of a plurality of strands attached to the conduit body, and the expansion direction of the stent structure body intersects the axial direction of the conduit body. The strand in the stent structure body which is closest to the second opening end is arranged at a predetermined distance from the second opening end, thereby effectively preventing blood from flowing back to a false lumen via a new tear.