Borate (B2O3) is one of the most important glass forming oxides and has been incorporated into various kinds of glass systems in order to attain the desired physical and chemical properties. Borate glasses have been of particular scientific interest for many years. Furthermore, phosphate glasses had several commercial applications because of high thermal expansion coefficient, low melting and softening temperature, high electrical conductivity and optical characteristics . Due to the flexibility of borate and phosphate base glasses, the research of their structure and properties is important. Continuing researches are still underway. Unfortunately borate glasses alone are not stablecompound even though it is well known as the glass former while the pure phosphate network is hygroscopic which often limit their practical uses. Specialized phosphate glasses show promising application as fast ion conductors, waveguides, optical switches and lead metaphosphate glasses reveal higher chemical durability than alkali glasses. Their chemical durability can be enhanced by the replacement of P2O5 by B2O3.