A combination base for a golf practice artificial sod is formed by a number of combination plates for placing the artificial sod on the combination base. Each combination plate is made of foaming PU (Polyurethane) and has a protruding edge to extend upwardly. The protruding edge has a first end formed with a concave hole and a second end formed with a protruding block. The concave hole is connected to a relative protruding block of another adjacent combination plate. Each combination plate has a connecting edge formed with continuous convex teeth and notches to engage with the convex teeth and the notches of a relative connecting edge of an adjacent combination plate.