In this paper, NaY₂F₇∶Eu transparent glass-ceramics were successfully synthesized through high temperature melting method. X-ray diffraction, transmission electron microscopy, and selected electron diffraction showed that the NaY₂F₇ nanocrystals were formed and uniformly dispersed in the glass matrix, with particle sizes ranging from 31 nm to 38 nm. Under the excitation of 340 nm, the blue band emission of Eu²⁺ was observed, and the peak value was 425 nm, indicating that Eu³⁺ was reduced to Eu²⁺ in the air atmosphere. Excited at 393 nm, the sample has a strong red emission, and Eu³⁺ emission peaks at 577, 589, 612, 650, and 701 nm were observed in the emission spectrum. By changing the excitation wavelength (340?400 nm), the emission color of NaY₂F₇∶Eu transparent glass-ceramics can be adjusted from blue to red region. Under the excitation of 380 nm, the emission intensity of GC660 sample at 413 K is 75.1% of that at 313 K. The results indicate that NaY₂F₇∶Eu²⁺/Eu³⁺ glass ceramics have great potential applications in plant lighting.