The purpose of the present invention is to provide an artificial blood vessel that is able to maintain the mechanical characteristics of an artificial blood vessel, that is resistant to thrombus formation when grafted into a blood vessel of small diameter or medium diameter, and that has outstanding cell fixation properties to afford ready cell fixation and rapid endothelial tissue growth. The present invention provides an artificial blood vessel comprising a tubular fabric having at least two types of polyester fiber, i.e., a multifilament yarn A having a single fiber denier of 1.0 dtex or greater and a total denier of 33 dtex or less, and a multifilament yarn B having a single fiber denier of 0.08 dtex or less and a total denier of 66 dtex or less, and having an inside diameter of 8 mm or less and a wall thickness of 50 mu m-250 mu m, the multifilament yarn B forming loops on the inner wall surface of the composite tubular fabric.