The invention relates to a stone crystal face processing composition and a preparation method of the composition, and discloses a crystallization agent for processing a stone surface. The crystallization agent is prepared from, by weight, 0.5-5% of polyolefine wax, 10-30% of fluosilicic acid or fluorosilicate, 1-6% of acid regulator, 0.5-5% of fast dry agent and the balance water, wherein the polyolefine wax is added in the form of an emulsion, and the solid content of the polyolefine wax emulsion is within a range of 20-60%. The crystallization agent can be used for conducting crystal face processing on stone including marble, terrazzo and special granite, and can be used for hardening and lightening the surface of a stone floor at the same time; while protection is given to the floor, the crystal surface of the floor is made to have a high glossiness, and the non-skid property is improved. Meanwhile, the processed stone surface has an enhanced mechanical property and is more resistant to abrasion and chemical corrosion, and water-soluble stains are not prone to permeate into the stone. The stone surface processed with the crystallization agent can be washed with water; compared with conventional waxing treatment, later maintenance is convenient and fast, the maintenance cost is reduced.