A preparing process of an antifouling soft-light marble tile is disclosed and belongs to the technical field of tile preparation. The process is characterized in that the process includes steps of 1) preparing a green body, 2) applying ground coat, 3) performing ink-jet printing of marble pattern overglaze, 4) firing and 5) soft polishing; a green body material used in the green body preparing step includes, by weight, 30-35 parts of feldspar, 3-5 parts of crystal frit, 10-15 parts of pyrophyllite, 25-35 parts of white clay and 15-20 parts of high-aluminum rock; and a glaze material used in the overglaze includes, by weight, 25-30 parts of feldspar, 15-20 parts of crystal frit, 3-5 parts of corundum, 7-10 parts of kaolin, 8-10 parts of zinc oxide, 8-11 parts of wollastonite, 1-3 parts of barium oxide and 10-15 parts of quartz. The simulation degree between the tile and natural marble in the aspects of visual inspection and touch senses is high. The fouling resistance, wear resistance, coloring effects, crack resistance, and the like of the tile are superior to those of the natural marble.