The present invention relates to a method for producing zeolite as a soil composition for making a grass lawn. The method includes the steps of: (a) selectively separating natural zeolite with sieves by particular sizes after grinding the natural zeolite; (b) firstly drying the selectively separated granular zeolite; (c) immersing the dried zeolite in a solution wherein potassium carbonate (K_2CO_3) is dissolved in purified water; (d) secondly drying the zeolite by evaporating only water from the solution wherein the zeolite is immersed; (e) sintering the secondly dried zeolite; and (f) naturally cooling the sintered zeolite.
