Eu(DBM)3·H2O nanocrystallites were obtained by the chemical precipitation method．By the elemental analyzer．irfrared spectrum

TGA-DSC and TEM

that the construction of nanocrystallines

the thermal properties and size were confirmed

in addition

fluorescence excitation and emission spectrum

ultraviolet absorption spectrums were investigation．Then the nanocrystallines were incorporated into the copolymer system of styrene and methyl acrylic acid．the fluorescence functional polymer nanometer materlal with high lanthanide content (50wt％) were obtained．The experiment indicated that Eu (DBM)3·H2O nanocrystallines particle sizes were in 30～300 nm

it exhibited eumpium ion ehar|atanistie luminescence．The optical resins could provide a rdativdy stable environment for Eu (DBM)3·H2O nanocrystallines．