In this paper, Yb3+/Er3+ doped glass ceramics was prepared in composition of PbF2+GeO2+WO3+SiO2+NaF by melting method at 950 ℃ for 20 min following annealing at 380 ℃ for 4 h. The emission spectrum of the sample was measured by a Hatachi F4500 Flwore-spectrometer using a 980 nm laser excitation source. The emission spectrum shows a strong emission peak at 550 nm and weak peaks at 528 nm and 680 nm. The experimental results were discussed and the upconversion mechanism was established. The sample shows good chemical durability, mechamical strength and broad excitation spectrum. Therefore this glass ceramics can be developed for application.