The invention discloses a printing glaze as well as a preparation method and application thereof. The printing glaze comprises the following components in parts by mass: 93.2-104 parts of a basic printing glaze, 0.2-0.4 part of sodium tripolyphosphate, 0.2-0.4 part of carboxymethylcellulose, 60-80 parts of water and 30-50 parts of a printing material, wherein the basic printing glaze comprises 65-70 parts of SiO2, 12-15 parts of Al2O3, 1-1.5 parts of CaO, 0.2-0.5 part of MgO, 4-5 parts of K2O, 5-5.5 parts of Na2O and 6-6.5 parts of ZrO2. The printing glaze is printed between a surface glaze and a metal glaze, reactions of the metal glaze with the surface glaze are blocked, and the problems that in the prior art a metal effect of a metal glaze is not easily achieved on a surface glaze, fixed point printing cannot be achieved and the cost is relatively high are solved.