Lead-free frit was first prepared by the melting method.Then,the effects of CeO2,Li2O and ZrO2 on the performances of the frit,such as the maturing temperature range,the thermal expansion coefficient,the flexural strength and the chemical stability,etc.,were investigated by using the high-temperature microscope,the therm alexpansion analyzer,XRD and SEM.The results indicate that(1)with the addition of CeO2,the initial fusing tem-perature of the frit decreases,while the maturing temperature increases;(2)both the initial fusing temperature and the maturing temperature decrease by 30 to 50℃ if 1.5% (mass fraction)Li2O is added;(3)the chemical sta-bility of the frit can be improved by adding ZrO2 to the frit;and(4)the flexural strength of the frit can be greatly improved by adding CeO2 and ZrO2 together.Finally,a kind of excellent frit with a maturing temperature of 850 to 900℃ .a flexural strength more than 70 MPa and a mass loss in chemical solution less than 100 μg/cm was pre-pared.