A main object of the present invention is to provide an artificial tissue capable of transporting the nutrition necessary for maintaining the activity of the cells or tissues. To achieve the object, the present invention provides an artificial tissue including a blood vessel-containing tissue layer having at least two adjacent blood vessels and a cell disposed between the blood vessels, characterized in that an interval between the two adjacent blood vessels in the blood vessel-containing tissue layer is formed by a nutrition supplyable distance which does not cause a necrosis of the cell.
