PURPOSE: To use a natural soil ground as it is and form artificial turf on the ground, which is provided with a cushioning capacity equivalent to that of natural turf and which is free of shrinkage or uneven deformation on the surface even when it is subjected to violent movement and enhance the permeability of rain.water and protect a natural ecological system of the ground of an athletic stadium from breakdown.

CONSTITUTION: A rock material fabric 15 is spread on the whole surface of a ground which is used as a stadium in which sand is filled up. Then, artificial turf fabrics 10 whose permeability is at least 80%, are spread thereon. Then, the artificial turf fabrics 10 are pulled up and strained and temporarily fixed with the ground with anchor nails 21. The artificial turf fabrics 10 are sewn together one after another in every direction. This method is repeated so that the artificial turf fabrics 10 may be expanded one after another. After that, only the surrounding area and the peripheral edge of the stadium are fixed with the ground 30. An artificial turf layer is installed like a drum, thereby providing a cushioning capacity similar to the natural turf without destroying the natural ecological system.