A CBN grinding wheel of a low-temperature ceramic bond consists of a bond, auxiliary materials, an abrasive layer and a transition layer. The components and the proportion of the bond are 48-60% of SiO2, 25-37% of Al2O3, 5-10% of Na2O and 3-7% of Li2O; the components and the proportion of the abrasive layer are 23-40% of CBN and 23-40% of SiC, 20.3-29.8% of the bond, 0.1-0.3% of dextrin powder and 0.1-0.2% of walnut powder; and the components and the proportion of the transition layer are 64-76% of the SiC, 21.9-32.9% of the bond and 0.1-0.2% of the dextrin powder. By adopting the technical processes of mixing materials, molding a blank of the abrasive layer by compression, sintering the blank of the abrasive layer, configuring, determining and processing the dimension of matrix bond, bonding the abrasive layer with the matrix, carrying out rotation test, trimming the external circle and end face of the abrasive layer, inspecting the abrasive layer of the grinding wheel, carrying out dynamic balancing, processing the appearance, and the like, and by reducing the firing temperature of the ceramic bond, the problem that burning loss happens easily due to oxidation of the abrasive is solved, and the strength of the product is improved.