The ceramic basin is sintered at a high temperature of above 1260°C and belongs to the category of “Grog”. Therefore, the internal structure is tighter and the water absorption rate is less than 0.5%. Occurrence of no sewage leakage and glaze cracking can be guaranteed, ensuring that the product as a whole has sufficient pressure resistance and is safer to use. After the glaze of sanitary ware is heated with imported glazing ceramics at a high temperature of 1300℃, the clay is melted, glaze is fused, without water penetration and pore, and the ceramic is radioactivity-free, solid, durable and glossy. The surface of sanitary product is bright and smooth. Wipe easily to remove stains and keep the glaze bright and clean enduringly.