Sanitary ware repairing glaze and preparation method thereof

The invention discloses sanitary ware repairing glaze and a preparation method thereof, the sanitary ware repairing glaze comprises the following raw materials by weight percentage: 10-20% of low-melting-point glass powder, 15-30% of spodumene, 50-74% of surface glaze and 0.3-0.8% of nano La2O3, wherein the initial melting temperature of the low-melting-point glass powder is 400-530 DEG C. The sanitary ware repairing glaze has the advantages of high color consistency before and after repair, good thermal stability of the repair position, improvement of the repair superior rate, low re-burningtemperature, and solving of the problems of mismatching of the repair position and the main body color, and high proportion of burnt and deformed products after re-burning. According to the preparation method of the sanitary ware repairing glaze, the prepared sanitary ware repairing glaze mud and sanitary ware repairing glaze slip cannot crack due to rapid drying, the bonding property with a sanitary ware main body is goo