The photoluminescence of nematic liquid crystals doped with silver nanoparticles has been investigated. The peak intensity of photoluminescence varies with the concentration of doped silver nanoparticles. The peak intensity of photoluminescence shows the enhancement effect in the range of concentration from 0% similar to 1% and the quenching effect in the range of concentration from 1% similar to 4%. The photoluminescence can be enhanced around 55% for silver nanoparticles with 88 nm in diameter.