The present invention provides an artificial straight blood vessel for over-turning anastomosis. The artificial straight blood vessel for over-turning anastomosis consists of an annular line anastomosis section, a vertical line connecting section and an annular line extension section, the vertical line connecting section is respectively connected with the annular line anastomosis section and the annular line extension section, the annular line anastomosis section is turned over outwards, two sections of blood vessels of the annular line anastomosis section and the vertical line connection section are tightly jointed after being turned over, and the whole shape of the artificial blood vessel is in a turned-over cuff shape. The artificial blood vessel is woven by adopting a polyurethane material, and an inside and an outside of the blood vessel both contain albumin coatings. The artificial blood vessel is simple to manufacture, non-magnetic, not narrow inside, good in longitudinal line expansion, complete in models, and suitable for people of various body types, and especially contains small diameter models. The artificial straight blood vessel can continuously suture a plurality ofstitches, realizes fast and efficient suturing, is not easy to cause anastomotic stenosis and convenient to complete a blood vessel replacement operation, has good hemostasis and compression effects,obviously reduces a bleeding incidence rate of anastomotic stoma, ensures anastomotic quality, and has simple and convenient operation and exact effects.