A New Er3+-doped TeO2-WO3-Na2O glass for ion-exchanged waveguide devices has been fabricated and characterized. The measured absorption and emission spectra of the glass were analyzed by the Judd-Ofelt and McCumber theories. The intensity parameters are Ω2=7.01×10-20 cm2, Ω2=1.80×10-20 cm2, Ω2=1.03×10-20 cm2. The glass has high and broadband absorption and stimulated emission cross-sections at 1.5 μm. The maximum emission cross-section is 0.91×10-20 cm2 at 1.533 μm, and a broad 1.5 μm emission spectrum of 65 nm full width at half maximum (FWHM) is demonstrated. Emission properties for 4I13/2→4I15/2 transition of Er3+ in different glasses are compared with each other. It is indicated that Er3+-doped TeO2-WO3-Na2O glasses will be a promising candidate for broadband ion-exchanged waveguide devices.