A new Ag

+

-CaO-P

2

O

5

glass was prepared unde reducing condition.The absorption

excitation and emission spectra of the glasses were measured at room temperature.The absorption spectra of Ag

+

-CaO-P

2

O

5

glass shows two absorption peaks

the higher energy peak at 220nm is assigned to the 4d

10

→4d

9

5p

1

transition and the lowr energy peak at 240nm is assigned to the 4d

10

→4d

<

9

5s

1

transition which is related to the emission.Excitation and emission spectra of Ag

+

-CaO-P

2

O

5

glass obtained by the excitation at 287nm exhibit a max-imum in the vinity of 440nm with full width at half maximum(F WHM)of 130nm.The posi-tion of the fluorescent peak shifts to longer wavelength with increasing do pant concent ration(from 0.05 to 0.25mol%).The glass containing 0.5mol%Ag

2

O appears the fluorescent quenching.Cu

+

-CaO-P

2

O

5

glass and Ag

+

-Cu

+

-CaO-P

2

O

5

glass w ere prepared by weakly reducing condition.T he luminescent characteristics of these glasses were compared with that of Ag

+

-CaO-P

2

O

5

glass.