Abstract: In this paper, the Na₂O-K₂O-Nb₂O₃-B₂O₃-SiO₂-xCeO₂ system is used as glass system, and the(Na, K)NbO₃ glass is prepared by melting method. Nb₂O₅, K₂CO₃, Na₂CO₃, SiO₂, H₃BO₃ and CeO₂ are used as raw materials.(Na, K)NbO₃ glass ceramics were prepared by mixing, melting, forming, annealing and crystallization. The effect of different CeO₂ content on microstructure and dielectric property of(Na, K)NbO₃ glass-ceramics are investigated. The experimental results show that in the five groups of(Na, K)NbO₃ glass-ceramics, the crystal gradually precipitates with the increasing amount of CeO₂, the crystal shape become more regular and the distribution is more uniform. When the doping amount of CeO₂ is 3%, the(Na, K)NbO₃ glass-ceramics have excellent microstructure and obtain the best ferroelectric properties.