Abstract: Fine silver and copper nanoparticles with narrow distribution were synthesized by a simple route in water using CTAB as the capping agents, glucose as reducing agents. The morphology and crystal structure of asprepared silver and copper nanoparticles were analyzed by transmission electron microscopy and Xray powder diffraction. The results displayed that assynthesized silver and copper nanoparticles were pure silver and pure copper. Moreover, the effect of the silver nitrate concentration and reaction time on the morphology and size of the silver nanoparticles were discussed. When the appropriate concentration of silver nitrate and reaction time were applied, the monodispersed silver nanoparticles of 10 nm with narrow distribution could be obtained. The UVvis spectrums were also confirmed that the assynthesized sols were silver and copper nanoparticles.